Shit, I think the pre-checked cross sales might be doing it. I just noticed it on the join page after the username/password creation.
I didn't think Pimproll did that...that'll teach me to not look so closely. You have to scroll down past the join button to see the $70 or so in charges they're about to make.
I think I know most of the Adwords tricks in general, but if anyone has any tips pertaining to paysite promotion or adult PPC campaigns that they don't mind sharing, hit me up ASAP. My ICQ is 308-743-6six9.