Huh, I thought that you put that there.
The majority of these titles were due to some joke in a thread. A bunch of them, including Rick's, were possibly done be he-who-shall-not-be-named who incidentally is not banned but chooses not to post anymore. There are a bunch of titles that I couldn't begin to guess where they came from. Ok I guess Pat did it, after reading a few more posts.
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.