I'd say 'do a search' but I'm pretty sure most (if not all) his troubling posts have been removed.

He's a guy who has a deep hatred for GLOs (namely NPHC ones, of which he was a member). He caused a lot of trouble on GC when GC first began and that's all I'll say about that. If you really want to know, I'm sure you'll be able to find that info.