What you are actually choosing between
Two different fields are involved, and mixing them up is the usual cause of a half-finished cleanup.
WordPress.com distinguishes the login username from the public display name used on authored content and comments; without a display name the username is shown instead. Source
That separation is the whole basis of this decision: a display-only edit changes what readers see on your authored content and comments, while a username change touches the identifier attached to the account itself.
Choose display-only or username change
Work through this table before touching any setting. It is written for WordPress.com specifically; self-hosted WordPress installations can behave differently and are out of scope here.
| Your situation | Display-only edit | Username change |
|---|---|---|
| Old name appears on bylines or comments and you want the public name corrected | Usually the right first move | Unnecessary for this problem |
| You want the login identifier itself to be different | Does not address this | The relevant field, but read the limits first |
| You are worried the old username will be taken by someone else | Does not apply; it is not released either way | Does not release the old username for another account |
| You rely on URLs tied to the account | No URL effect from the display name | Can affect related service URLs |
| You want the old name to disappear everywhere | Not guaranteed; check each surface | Not guaranteed; check each surface |
Two limits matter more than the table suggests. First, a new display name is not anonymity: it changes the label, not what the account has published or what other people may already have copied. Second, neither edit is a promise that earlier publications vanish. Treat both as label changes, not erasure.
The public display name can be changed in account settings under Public Gravatar profile; changing the actual username can affect related service URLs and does not release the old username for another account. Source
Step 1: Change the display name
- Sign in to the WordPress.com account that owns the content.
- Open account settings and locate the Public Gravatar profile section.
- Update the public display name to the name you want readers to see.
- Save, then open one of your published posts or a recent comment in a private browser window to confirm what the public actually sees.
If the old name still appears somewhere, note where before making any further change. A single settings edit cannot reach surfaces you have not checked.
Step 2: Inventory the places the old name shows up
Build this list before you decide the job is done, because the display name is only one surface:
- Author bylines on posts and pages you authored.
- Comments you left on other sites, including ones you no longer visit.
- Connected profile URLs — any public page or link that points at your profile or carries the old handle.
- Gravatar-linked surfaces where your public profile details are reused.
- Your own off-platform listings — bios, portfolios or directories you control elsewhere.
For each item, record the URL, what it currently shows, and whether it is under your control. Items you do not control are not fixed by a settings change; they need a separate request or edit on that service.
Step 3: Decide whether a username change is warranted
Only pursue the username change if the problem is genuinely the login identifier rather than the public label. Before doing so, confirm two things: which related service URLs depend on the current username, and whether anything you rely on links to them. Because the old username is not released for another account, a rename does not let you or anyone else re-register it.
If those URL dependencies are unclear, stop at the display-only edit. It solves the byline and comment problem without touching the identifier.
Step 4: Check known public usernames elsewhere (optional)
If part of your concern is that the old handle is visible on other platforms, TraceSeek can check a known public username across 3,000+ platforms and return public matches in roughly 20–30 seconds, with a free first scan. It cannot change account settings, cannot access private accounts, cannot verify who a person really is, and cannot guarantee that anything is erased. A public match is a lead, not proof of ownership — matching handles, photos or bios do not independently establish identity.
Failure paths to expect
- The byline changed but comments did not. Comments may sit on sites you do not administer; check them individually.
- A profile URL now looks inconsistent. If the display name changed but a linked profile still shows the old label, that page needs its own edit.
- You expected the old username to be freed. It is not released for another account, so plan around that rather than waiting.
- You assumed earlier posts were removed. A display name edit does not delete publications. If removal is the goal, that is a separate task with its own process.
- You are editing a self-hosted WordPress site. The steps above describe WordPress.com; do not assume identical menus elsewhere.
A useful next action
Write down the three surfaces you care most about — byline, comments, profile URL — and check each one after the display-name edit. Anything still showing the old name is either a page you must edit yourself or a service you must contact. Keep that list with the date you checked, so a later review can tell a stale page from a failed edit.