How does Twitter handle username changes that involve public figures?

Twitter has a policy regarding the use of impersonation, including impersonation of public figures. If a username is being used to impersonate a public figure in a way that is confusing or misleading, Twitter may suspend the account or require the user to change the username.

Twitter's policy states that accounts that impersonate public figures, such as celebrities, government officials, or other well-known individuals, may be permanently suspended if they are created to mislead or deceive others. This includes accounts that use a public figure's name, photo, or other identifying information in a way that is likely to cause confusion or mislead others.

If a public figure believes that their identity is being impersonated on Twitter, they can report the account to Twitter. Twitter will then review the account and take appropriate action, which may include requiring the user to change their username or suspending the account.

It's important to note that Twitter allows parody and fan accounts, as long as they are clearly labeled as such and do not mislead or deceive others. However, these accounts must still comply with Twitter's rules and policies, including those related to impersonation and trademark infringement.