The Attack Of The "Barely-Legal" Ho-Bags

While I am well aware that I'm not exactly within their target demo, in the few months I've been using MySpace, the site has gone from just slightly interesting, right on over to pretty damn annoying. If you get 10 emails, 8 of them are from "barely-legal girls" who are "personally inviting you to share in their online modeling show", or some similarly fake crap designed to reel horny, stupid straight guys over to pay-per-jerk cam sites. Have any of these social networking sites been immune to The Attack Of The "Barely-Legal" Ho-Bags? Is there a way to mark your profile as a vagina-free zone? And where are the barely-legal MALE ho-bags? I don't want to see them either, but fair's fair.