Thread:NoWayThisUsernameIsAlreadyOwnedBySomeone/@comment-24335865-20150621120444/@comment-26143371-20150706170650

because it would leave pages that are using it with blank image That kind of applies to all images, doesn't it? And only admins(and VSTF, wikia staff, ...) can rename files, see Special:Listgrouprights and search for.