Aw come on, folks -- You all know that 'GUEST-Who's it this time' is only trying to get our hackles up again. Just ignore the little bugger.
I think this is pretty funny, considering that he can't even decide on his own name, so he has to try to 'out' somebody else. Sad, sad, sad. So, let's not turn his fire up any higher and . . .
JUST IGNORE HIM . . . like a bad smell, he'll go away eventually.