Warning, this subject is old (3498 days without answer)
antp
He just asked me.
I can easily change it on the site, not on the forum though - but he had different names on the site and the forum, one of the reasons to do it was to have matching names on both.
Gamer
I would like to know how Davez621 changed his username to MisterZ as I tried changing my ID and it didn't work.