Team MTBNJ Halter's
Username changes pretty much happen when someone asks for it. So it usually goes like this:
Bob1289743980752348507234: Hey who can change my username?
@JimN - tags me
Norm: _changes username to something dumb_
Then we go back & forth and we settle on something
I don't usually change anyone's username blindly, unless they are a friend or at least friendly with. I'll just leave that there.