As I said in my reply to you, thank you for your PM.Yep, he is indeed a spammer, and I checked him out in the spammer database (I'm a moderator elsewhere and use that tool extensively) . I sent a PM to Drew about him. As far as the PM spammers go, one way to minimise it would be to limit PM access until they've had a minimum number of posts.
I've enabled the database on SAS using a vBulletin mod.
Hopefully it'll stop most of these guys. I'd rather not go the minimum post route.