It's possible the user had 2 accounts which is not permitted and I merged two accounts and it kept one of the names. It happens time to time when people try to bump up their posts etc. and it not a recommended way. 
There's implications in changing usernames where old posts that were quoted still retain the old username, members don't know who you are, etc. and it is not something we want to allow at this time. In the future perhaps we will have a better solution, as we do plan to use a new platform. Thanks!
There's implications in changing usernames where old posts that were quoted still retain the old username, members don't know who you are, etc. and it is not something we want to allow at this time. In the future perhaps we will have a better solution, as we do plan to use a new platform. Thanks!