Board Thread:Questions and Answers/@comment-5845979-20130529010325/@comment-5643552-20130529030031

To build on what Hävitetty said, you cannot have something under the exact same title in ANY namespace on this wiki. Take article titles, for example; if you tried to make a page called "BEN Drowned", it wouldn't work as there is already a page under the title of "BEN Drowned". The only way to make a page under that title is to delete the original page to make room for the new, something I'm not sure is even POSSIBLE for things like usernames (i.e. you cannot physically "delete" any one user account once created).