diff --git a/src/components/post-form/__tests__/post-form.test.tsx b/src/components/post-form/__tests__/post-form.test.tsx
index 54b48024..80189e23 100644
--- a/src/components/post-form/__tests__/post-form.test.tsx
+++ b/src/components/post-form/__tests__/post-form.test.tsx
@@ -1052,6 +1052,24 @@ describe('PostForm', () => {
     expect(container.textContent).not.toContain('warning: posting as moderator');
   });
 
+  it('uses the 5chan dev label for known developer moderator posts', async () => {
+    testState.account = {
+      author: { address: 'plebeius.bso', displayName: 'Tom' },
+      subscriptions: ['music-posting.eth'],
+    };
+    testState.resolvedCommunityAddress = 'music-posting.eth';
+    testState.rolesByCommunity = {
+      'music-posting.eth': {
+        'plebeius.bso': { role: 'owner' },
+      },
+    };
+
+    await renderPostForm('/mu');
+    await clickByText(container, 'start_new_thread');
+
+    expect(container.textContent).toContain('warning: posting as 5chan dev');
+  });
+
   it('shows the pasted file-link filename next to the upload button', async () => {
     testState.uploadedFileName = null;
 
diff --git a/src/components/post-form/post-form.tsx b/src/components/post-form/post-form.tsx
index c8c1a0ed..770d5338 100644
--- a/src/components/post-form/post-form.tsx
+++ b/src/components/post-form/post-form.tsx
@@ -21,6 +21,7 @@ import {
 } from '../../lib/utils/post-options-utils';
 import { truncateWithEllipsisInMiddle } from '../../lib/utils/string-utils';
 import { getPublishURLFilename, isValidPublishURL, isValidURL } from '../../lib/utils/url-utils';
+import { getModerationPostingRoleLabel } from '../../lib/utils/author-display-utils';
 import { hasModQueueAccessRole } from '../../lib/utils/mod-access';
 import { getBoardPath } from '../../lib/utils/route-utils';
 import { isAllView, isCatalogView, isModQueueView, isModView, isPostPageView, isSubscriptionsView } from '../../lib/utils/view-utils';
@@ -536,6 +537,8 @@ const PostFormTable = ({ closeForm, postCid }: { closeForm: () => void; postCid:
   const roles = useCommunityField(effectiveBoardAddress, (community) => community?.roles);
   const accountRole = accountAddress ? roles?.[accountAddress]?.role : undefined;
   const showBbcodeToolbar = hasModQueueAccessRole(accountRole) || (!effectiveBoardAddress && isInModView && accountCommunityAddresses.length > 0);
+  const moderationPostingRoleLabel = getModerationPostingRoleLabel({ address: accountAddress, role: accountRole });
+  const moderationPostingWarning = showBbcodeToolbar && moderationPostingRoleLabel ? `warning: posting as ${moderationPostingRoleLabel}` : undefined;
 
   const [lengthError, setLengthError] = useState<string | null>(null);
   const [formError, setFormError] = useState<string | PostOptionsValidationError | null>(null);
@@ -877,7 +880,7 @@ const PostFormTable = ({ closeForm, postCid }: { closeForm: () => void; postCid:
           />
         </tbody>
       </table>
-      {showBbcodeToolbar ? <div className={`${styles.error} ${styles.formError}`}>warning: posting as moderator</div> : null}
+      {moderationPostingWarning ? <div className={`${styles.error} ${styles.formError}`}>{moderationPostingWarning}</div> : null}
       {formError ? (
         <div className={`${styles.error} ${styles.formError}`}>
           {isPostOptionsValidationError(formError) ? <PostOptionsErrorMessage error={formError} directories={directories} /> : formError}
diff --git a/src/components/reply-modal/__tests__/reply-modal.test.tsx b/src/components/reply-modal/__tests__/reply-modal.test.tsx
index b510d2a2..5e961e08 100644
--- a/src/components/reply-modal/__tests__/reply-modal.test.tsx
+++ b/src/components/reply-modal/__tests__/reply-modal.test.tsx
@@ -775,8 +775,8 @@ describe('ReplyModal', () => {
     expect(container.querySelector('select[aria-label="Text color"]')).toBeNull();
     expect(container.textContent).not.toContain('mods only');
     expect(container.textContent).not.toContain('Mod editor');
-    expect(container.textContent).toContain('warning: posting as moderator');
-    const moderatorWarning = Array.from(container.querySelectorAll('div')).find((element) => element.textContent === 'warning: posting as moderator');
+    expect(container.textContent).toContain('warning: posting as admin');
+    const moderatorWarning = Array.from(container.querySelectorAll('div')).find((element) => element.textContent === 'warning: posting as admin');
     expect(moderatorWarning?.className).toContain('error');
     expect(container.querySelector('button[aria-label="Quote"]')).toBeNull();
 
@@ -794,7 +794,7 @@ describe('ReplyModal', () => {
 
     expect(container.querySelector('button[aria-label="Red text"]')).toBeNull();
     expect(container.textContent).not.toContain('mods only');
-    expect(container.textContent).not.toContain('warning: posting as moderator');
+    expect(container.textContent).not.toContain('warning: posting as admin');
   });
 
   it('updates account state, applies upload completions, and closes once publishing succeeds', async () => {
diff --git a/src/components/reply-modal/reply-modal.tsx b/src/components/reply-modal/reply-modal.tsx
index cd867dd1..f5ed67c4 100644
--- a/src/components/reply-modal/reply-modal.tsx
+++ b/src/components/reply-modal/reply-modal.tsx
@@ -18,6 +18,7 @@ import {
 } from '../../lib/utils/post-options-utils';
 import { getPublishURLFilename, isValidPublishURL } from '../../lib/utils/url-utils';
 import { hasModQueueAccessRole } from '../../lib/utils/mod-access';
+import { getModerationPostingRoleLabel } from '../../lib/utils/author-display-utils';
 import { isAllView, isModView, isSubscriptionsView } from '../../lib/utils/view-utils';
 import useSelectedTextStore from '../../stores/use-selected-text-store';
 import useReplyModalStore from '../../stores/use-reply-modal-store';
@@ -81,6 +82,8 @@ const ReplyModal = ({ closeModal, showReplyModal, parentCid, parentNumber, threa
   const roles = useCommunityField(communityAddress, (community) => community?.roles);
   const accountRole = accountAddress ? roles?.[accountAddress]?.role : undefined;
   const showBbcodeToolbar = hasModQueueAccessRole(accountRole);
+  const moderationPostingRoleLabel = getModerationPostingRoleLabel({ address: accountAddress, role: accountRole });
+  const moderationPostingWarning = showBbcodeToolbar && moderationPostingRoleLabel ? `warning: posting as ${moderationPostingRoleLabel}` : undefined;
   const textRef = useRef<HTMLTextAreaElement | null>(null);
   const setTextRef = useRef((element: HTMLTextAreaElement | null) => {
     textRef.current = element;
@@ -609,7 +612,7 @@ const ReplyModal = ({ closeModal, showReplyModal, parentCid, parentNumber, threa
             {t('post')}
           </button>
         </div>
-        {showBbcodeToolbar ? <div className={styles.error}>warning: posting as moderator</div> : null}
+        {moderationPostingWarning ? <div className={styles.error}>{moderationPostingWarning}</div> : null}
         {lengthError ? (
           <div className={styles.error}>{lengthError}</div>
         ) : error ? (
diff --git a/src/lib/utils/__tests__/author-display-utils.test.ts b/src/lib/utils/__tests__/author-display-utils.test.ts
index 54eb1c5e..b4e54a50 100644
--- a/src/lib/utils/__tests__/author-display-utils.test.ts
+++ b/src/lib/utils/__tests__/author-display-utils.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest';
-import { KNOWN_5CHAN_DEVELOPER_ENTRIES, get5chanDeveloperBadge, getAuthorBadge, isKnown5chanDeveloper } from '../author-display-utils';
+import { KNOWN_5CHAN_DEVELOPER_ENTRIES, get5chanDeveloperBadge, getAuthorBadge, getModerationPostingRoleLabel, isKnown5chanDeveloper } from '../author-display-utils';
 
 describe('author display utils', () => {
   it('recognizes the hardcoded 5chan developer addresses', () => {
@@ -61,4 +61,12 @@ describe('author display utils', () => {
       title: 'administrator_of_this_board',
     });
   });
+
+  it('returns the posting warning label for the effective moderator role', () => {
+    expect(getModerationPostingRoleLabel({ address: 'plebeius.bso', role: 'owner' })).toBe('5chan dev');
+    expect(getModerationPostingRoleLabel({ address: 'other.bso', role: 'owner' })).toBe('owner');
+    expect(getModerationPostingRoleLabel({ address: 'other.bso', role: 'admin' })).toBe('admin');
+    expect(getModerationPostingRoleLabel({ address: 'other.bso', role: 'moderator' })).toBe('moderator');
+    expect(getModerationPostingRoleLabel({ address: 'other.bso', role: 'viewer' })).toBeUndefined();
+  });
 });
diff --git a/src/lib/utils/author-display-utils.ts b/src/lib/utils/author-display-utils.ts
index f41546b3..0f9711b7 100644
--- a/src/lib/utils/author-display-utils.ts
+++ b/src/lib/utils/author-display-utils.ts
@@ -51,3 +51,12 @@ export const getAuthorBadge = ({ address, role }: { address?: string; role?: str
     title: isMod ? 'moderator_of_this_board' : 'administrator_of_this_board',
   };
 };
+
+export const getModerationPostingRoleLabel = ({ address, role }: { address?: string; role?: string }): string | undefined => {
+  if (isKnown5chanDeveloper(address)) return '5chan dev';
+
+  const normalizedRole = role?.trim().toLowerCase();
+  if (normalizedRole === 'owner' || normalizedRole === 'admin' || normalizedRole === 'moderator') return normalizedRole;
+
+  return undefined;
+};