I remember Kerplunk.
He want on some crazy-ass crusade to hound Older_Gamer until his end of days or something.
OG couldn't quite literally make a single post without Kerplunk coming along and shitting all over it. It was like his sole goal in life was to call OG out on everything he ever said.
Still, other than that, I found him fairly entertaining. FUD 'n' all ;)