If you've got stable hosting and willing to do counting through a third party processor (that means no programs that shave), I can bring in 30k-50K unique hits daily of people who are actually willing to pay for porn, this usually translates to 100-150 signups/day.
Lemmy know if you're interested, your sites, and the payout.
...please if you've got no experience in this sort of thing, and can't handle the heat, don't bother.