If you have noticed, we've been seeing more than our fair share of new users from the SPAM spawning pools BUT the only thing we have had to deal with is their profiles. No more multi-message "see Britney's hair live" type stuff. Alison has upgraded our service to require one more step for new users before they can post. We can now review accounts to try and limit the SPAM-Scum from getting activated. While we can't prevent them signing up, we can try to keep them OUT of posting areas.
Hope this helps!