Please update us if theymos lets you do it
I am sure there will be others amongst us who wouldn't mind being able to change their usernames
I doubt he will just let anyone change it. The only people Ive seen been able to do it were VIP donators.
They can do it by themselves, and theymos as a general rule wont change anyone's name, but I think one guy might have had his name username changed fairly recently. There was a thread here about it and it looked like he succeed in getting it changed somehow.