I think that most of the people in this forum, even more so this topic know exactly how PPC and contextual advertising work. Don't get me wrong MrX - I hate to see sites breaking the TOS. But I also hate seeing/hearing the BS that goes on between jealous webmasters and the constant reporting and policing of each others ads. If you have a legit issue to report - then mail it. Mailing will filter out most of the BS that would otherwise occur with an email form that deals with TOS violations.
Touché. BTW, your car forum is pretty slick. I'm guessing the sponsorship does better than the AdSense...?