This is a game, not a chat room. Therefore just ban him from your own server if you feel so.

I think that he's funny and JJ2 wouldn't be the same without him. And don't worry, he'll grow up and stop soon. After all, we were all newbies once. Yes, even you.

On a site note, he's also one of the very few active players (him, NY00123 and some CC'ers and RR'ers).