Thread:Project:Support desk/Please add a account deletion procedure!/reply

MediaWiki itself is not made to delete user accounts of some users. User accounts (logged in (with usernames) or not (with IP's)) are central in the daily wiki usage. The Username/ID is connected with revisions of pages, used in discussions and so on. It's no trivial to delete a user correctly, so there is no feature in core and no working extension (iirc). You can use Extension:UserMerge to merge users. So you can use it to delete user accounts, e.g. when you merge account XY with a pseudo user account "Anonymous". All contributions will be attributed to this user account, without any chance to revert this action!