diff --git a/src/discussions/common/AlertBanner.jsx b/src/discussions/common/AlertBanner.jsx
index 3c2a96e7..1027faee 100644
--- a/src/discussions/common/AlertBanner.jsx
+++ b/src/discussions/common/AlertBanner.jsx
@@ -65,7 +65,7 @@ function AlertBanner({
           <div className="d-flex align-items-center">
             {intl.formatMessage(messages.editedBy)}
             <span className="ml-1 mr-3">
-              <AuthorLabel author={content.lastEdit.editorUsername} linkToProfile />
+              <AuthorLabel author={content.lastEdit.editorUsername} />
             </span>
             {intl.formatMessage(messages.reason)}:&nbsp;{content.lastEdit.reason}
           </div>
@@ -76,7 +76,7 @@ function AlertBanner({
           <div className="d-flex align-items-center">
             {intl.formatMessage(messages.closedBy)}
             <span className="ml-1 ">
-              <AuthorLabel author={content.closedBy} linkToProfile />
+              <AuthorLabel author={content.closedBy} />
             </span>
             <span className="mx-1" />
             {intl.formatMessage(messages.reason)}:&nbsp;{content.closeReason}
diff --git a/src/discussions/common/AuthorLabel.jsx b/src/discussions/common/AuthorLabel.jsx
index a58ed76f..001c9c88 100644
--- a/src/discussions/common/AuthorLabel.jsx
+++ b/src/discussions/common/AuthorLabel.jsx
@@ -1,14 +1,18 @@
-import React from 'react';
+import React, { useContext } from 'react';
 import PropTypes from 'prop-types';
 
 import classNames from 'classnames';
 import capitalize from 'lodash/capitalize';
+import { Link, useLocation } from 'react-router-dom';
 
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Icon } from '@edx/paragon';
 import { Institution, School } from '@edx/paragon/icons';
 
+import { Routes } from '../../data/constants';
 import messages from '../messages';
+import { discussionsPath } from '../utils';
+import { DiscussionContext } from './context';
 
 function AuthorLabel({
   intl,
@@ -17,6 +21,8 @@ function AuthorLabel({
   linkToProfile,
   labelColor,
 }) {
+  const location = useLocation();
+  const { courseId } = useContext(DiscussionContext);
   let icon = null;
   let authorLabelMessage = null;
 
@@ -33,8 +39,12 @@ function AuthorLabel({
   const className = classNames('d-flex align-items-center', labelColor);
 
   const labelContents = (
-    <>
-      <span className={`mr-1 font-size-14 font-style-normal font-family-inter ${fontWeight}`} role="heading" aria-level="2">
+    <div className={className}>
+      <span
+        className={`mr-1 font-size-14 font-style-normal font-family-inter ${fontWeight}`}
+        role="heading"
+        aria-level="2"
+      >
         {capitalize(author)}
       </span>
       {icon && (
@@ -54,16 +64,25 @@ function AuthorLabel({
           {authorLabelMessage}
         </span>
       )}
-    </>
+    </div>
   );
 
   return linkToProfile
-    ? React.createElement('a', { href: '#nowhere', className }, labelContents)
-    : React.createElement('div', { className }, labelContents);
+    ? (
+      <Link
+        data-testid="learner-posts-link"
+        to={discussionsPath(Routes.LEARNERS.POSTS, { learnerUsername: author, courseId })(location)}
+        className="text-decoration-none"
+        style={{ width: 'fit-content' }}
+      >
+        {labelContents}
+      </Link>
+    )
+    : <>{labelContents}</>;
 }
 
 AuthorLabel.propTypes = {
-  intl: intlShape,
+  intl: intlShape.isRequired,
   author: PropTypes.string.isRequired,
   authorLabel: PropTypes.string,
   linkToProfile: PropTypes.bool,
diff --git a/src/discussions/discussions-home/DiscussionSidebar.test.jsx b/src/discussions/discussions-home/DiscussionSidebar.test.jsx
index 1dccc6de..2158c5a2 100644
--- a/src/discussions/discussions-home/DiscussionSidebar.test.jsx
+++ b/src/discussions/discussions-home/DiscussionSidebar.test.jsx
@@ -11,6 +11,7 @@ import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../store';
+import { DiscussionContext } from '../common/context';
 import { fetchConfigSuccess } from '../data/slices';
 import { threadsApiUrl } from '../posts/data/api';
 import DiscussionSidebar from './DiscussionSidebar';
@@ -27,9 +28,11 @@ function renderComponent(displaySidebar = true, location = `/${courseId}/`) {
     <IntlProvider locale="en">
       <ResponsiveContext.Provider value={{ width: 1280 }}>
         <AppProvider store={store}>
-          <MemoryRouter initialEntries={[location]}>
-            <DiscussionSidebar displaySidebar={displaySidebar} />
-          </MemoryRouter>
+          <DiscussionContext.Provider value={{ courseId }}>
+            <MemoryRouter initialEntries={[location]}>
+              <DiscussionSidebar displaySidebar={displaySidebar} />
+            </MemoryRouter>
+          </DiscussionContext.Provider>
         </AppProvider>
       </ResponsiveContext.Provider>
     </IntlProvider>,
diff --git a/src/discussions/learners/LearnerPostsView.jsx b/src/discussions/learners/LearnerPostsView.jsx
index 956c0fe7..828c01e3 100644
--- a/src/discussions/learners/LearnerPostsView.jsx
+++ b/src/discussions/learners/LearnerPostsView.jsx
@@ -20,7 +20,6 @@ import {
 import NoResults from '../posts/NoResults';
 import { PostLink } from '../posts/post';
 import { discussionsPath } from '../utils';
-import { selectLearnerProfile } from './data/selectors';
 import { fetchUserPosts } from './data/thunks';
 import messages from './messages';
 
@@ -33,14 +32,13 @@ function LearnerPostsView({ intl }) {
   const loadingStatus = useSelector(threadsLoadingStatus());
   const { courseId, learnerUsername: username } = useContext(DiscussionContext);
   const nextPage = useSelector(selectThreadNextPage());
-  const { id: userId } = useSelector(selectLearnerProfile(username));
 
   useEffect(() => {
-    dispatch(fetchUserPosts(courseId, username, userId));
+    dispatch(fetchUserPosts(courseId, username));
   }, [courseId, username]);
 
   const loadMorePosts = () => (
-    dispatch(fetchUserPosts(courseId, username, userId, {
+    dispatch(fetchUserPosts(courseId, username, {
       page: nextPage,
     }))
   );
@@ -57,11 +55,11 @@ function LearnerPostsView({ intl }) {
       return (
         <React.Fragment key={post.id}>
           <div className="p-1 bg-light-400" />
-          <PostLink post={post} key={post.id} isSelected={checkIsSelected} />
+          <PostLink post={post} key={post.id} isSelected={checkIsSelected} learnerTab />
         </React.Fragment>
       );
     }
-    return (<PostLink post={post} key={post.id} isSelected={checkIsSelected} />);
+    return (<PostLink post={post} key={post.id} isSelected={checkIsSelected} learnerTab />);
   });
 
   return (
@@ -89,10 +87,10 @@ function LearnerPostsView({ intl }) {
             <Spinner animation="border" variant="primary" size="lg" />
           </div>
         ) : (
-          nextPage && (
-          <Button onClick={() => loadMorePosts()} variant="primary" size="md">
-            {intl.formatMessage(messages.loadMore)}
-          </Button>
+          nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
+            <Button onClick={() => loadMorePosts()} variant="primary" size="md">
+              {intl.formatMessage(messages.loadMore)}
+            </Button>
           )
         )}
       </div>
diff --git a/src/discussions/learners/LearnersView.jsx b/src/discussions/learners/LearnersView.jsx
index 71e1f088..e51f40ab 100644
--- a/src/discussions/learners/LearnersView.jsx
+++ b/src/discussions/learners/LearnersView.jsx
@@ -66,7 +66,7 @@ function LearnersView({ intl }) {
             <Spinner animation="border" variant="primary" size="lg" />
           </div>
         ) : (
-          nextPage && (
+          nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
             <Button onClick={() => loadPage()} variant="primary" size="md">
               {intl.formatMessage(messages.loadMore)}
             </Button>
diff --git a/src/discussions/learners/data/api.js b/src/discussions/learners/data/api.js
index 3419acce..5aca91d3 100644
--- a/src/discussions/learners/data/api.js
+++ b/src/discussions/learners/data/api.js
@@ -45,10 +45,10 @@ export async function getUserProfiles(usernames) {
  *    pagination: {count, num_pages, next, previous}
  *  }
  */
-export async function getUserPosts(courseId, userId, { page }) {
+export async function getUserPosts(courseId, username, { page }) {
   const learnerPostsApiUrl = `${coursesApiUrl}${courseId}/learner/`;
 
   const { data } = await getAuthenticatedHttpClient()
-    .get(learnerPostsApiUrl, { params: { user_id: userId, page } });
+    .get(learnerPostsApiUrl, { params: { username, page } });
   return data;
 }
diff --git a/src/discussions/learners/data/selectors.js b/src/discussions/learners/data/selectors.js
index 15926553..fae8940c 100644
--- a/src/discussions/learners/data/selectors.js
+++ b/src/discussions/learners/data/selectors.js
@@ -25,5 +25,3 @@ export const selectLearner = (username) => createSelector(
   [selectAllLearners],
   learners => learners.find(l => l.username === username) || {},
 );
-
-export const selectLearnerProfile = (username) => state => state.learners.learnerProfiles[username] || {};
diff --git a/src/discussions/learners/data/thunks.js b/src/discussions/learners/data/thunks.js
index 33718eca..094a25a2 100644
--- a/src/discussions/learners/data/thunks.js
+++ b/src/discussions/learners/data/thunks.js
@@ -59,16 +59,16 @@ export function fetchLearners(courseId, {
  * redux state
  *
  * @param {string} courseId Course ID of the course eg., course-v1:X+Y+Z
- * @param {string} userId userId of the learner
+ * @param {string} username name of the learner
  * @param page
  * @returns a promise that will update the state with the learner's posts
  */
-export function fetchUserPosts(courseId, username, userId, { page = 1 } = {}) {
+export function fetchUserPosts(courseId, username, { page = 1 } = {}) {
   return async (dispatch) => {
     try {
       dispatch(fetchLearnerThreadsRequest({ courseId, author: username }));
 
-      const data = await getUserPosts(courseId, userId, { page });
+      const data = await getUserPosts(courseId, username, { page });
       const normalisedData = normaliseThreads(camelCaseObject(data));
 
       dispatch(fetchThreadsSuccess({ ...normalisedData, page, author: username }));
diff --git a/src/discussions/posts/PostsList.jsx b/src/discussions/posts/PostsList.jsx
index d4e43223..a04d9556 100644
--- a/src/discussions/posts/PostsList.jsx
+++ b/src/discussions/posts/PostsList.jsx
@@ -79,7 +79,7 @@ function PostsList({ posts, topics, intl }) {
           <Spinner animation="border" variant="primary" size="lg" />
         </div>
       ) : (
-        nextPage && (
+        nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
           <Button onClick={() => loadThreads(topics, nextPage)} variant="primary" size="md">
             {intl.formatMessage(messages.loadMorePosts)}
           </Button>
diff --git a/src/discussions/posts/data/slices.js b/src/discussions/posts/data/slices.js
index 12a82ef4..5344fe5b 100644
--- a/src/discussions/posts/data/slices.js
+++ b/src/discussions/posts/data/slices.js
@@ -43,6 +43,7 @@ const threadsSlice = createSlice({
       if (state.author !== payload.author) {
         state.pages = [];
         state.author = payload.author;
+        state.totalThreads = null;
       }
       state.status = RequestStatus.IN_PROGRESS;
     },
diff --git a/src/discussions/posts/post/PostLink.jsx b/src/discussions/posts/post/PostLink.jsx
index 617a954c..e4818173 100644
--- a/src/discussions/posts/post/PostLink.jsx
+++ b/src/discussions/posts/post/PostLink.jsx
@@ -21,6 +21,7 @@ function PostLink({
   post,
   isSelected,
   intl,
+  learnerTab,
 }) {
   const {
     page,
@@ -72,7 +73,7 @@ function PostLink({
                 className={
                   classNames('text-truncate font-weight-500 font-size-14 text-primary-500 font-style-normal font-family-inter',
                     { 'font-weight-bolder': !post.read })
-}
+                  }
               >
                 {post.title}
               </div>
@@ -100,6 +101,7 @@ function PostLink({
             author={post.author || intl.formatMessage(messages.anonymous)}
             authorLabel={post.authorLabel}
             labelColor={authorLabelColor && `text-${authorLabelColor}`}
+            linkToProfile={!learnerTab && post.author}
           />
           <div
             className="text-truncate text-primary-500 font-weight-normal font-size-14 font-style-normal font-family-inter"
@@ -120,6 +122,11 @@ PostLink.propTypes = {
   post: postShape.isRequired,
   isSelected: PropTypes.func.isRequired,
   intl: intlShape.isRequired,
+  learnerTab: PropTypes.bool,
+};
+
+PostLink.defaultProps = {
+  learnerTab: false,
 };
 
 export default injectIntl(PostLink);
diff --git a/src/discussions/posts/post/PostLink.test.jsx b/src/discussions/posts/post/PostLink.test.jsx
index ae324d2e..54f645e9 100644
--- a/src/discussions/posts/post/PostLink.test.jsx
+++ b/src/discussions/posts/post/PostLink.test.jsx
@@ -7,15 +7,19 @@ import { initializeMockApp } from '@edx/frontend-platform';
 import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../../store';
+import { DiscussionContext } from '../../common/context';
 import PostLink from './PostLink';
 
+const courseId = 'course-v1:edX+DemoX+Demo_Course';
 let store;
 
-function renderComponent(post) {
+function renderComponent(post, learnerTab = false) {
   return render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
-        <PostLink post={post} key={post.id} isSelected={() => true} />
+        <DiscussionContext.Provider value={{ courseId }}>
+          <PostLink post={post} key={post.id} isSelected={() => true} learnerTab={learnerTab} />
+        </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );
@@ -65,3 +69,30 @@ describe('PostFooter', () => {
     expect(screen.getByTestId('reported-post')).toBeTruthy();
   });
 });
+
+describe('Post username', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+    store = initializeStore();
+  });
+
+  it.each([
+    true,
+    false,
+  ])('is a clickable link %s', (leanerTab) => {
+    renderComponent(mockPost, leanerTab);
+
+    if (leanerTab) {
+      expect(screen.queryByTestId('learner-posts-link')).not.toBeInTheDocument();
+    } else {
+      expect(screen.queryByTestId('learner-posts-link')).toBeInTheDocument();
+    }
+  });
+});