spam coming from this site

[JanS]

This is the only forum that I'm on that I get spam from. I mean 30 or more a day. Doesn't the site have filters to prevent this from happening? I get online dating, penis enlargement, and even hacked e mails out of my address book from people I know names in the address. It's a great site but if it doesn't stop I'll be forced to go elsewhere. Anyone else have this problem