I don't think that user which doesn't want to pay for porn, and so will try to find url of your 'next' page,
will buy porn from your 404 page when he'll find yout that he didn't piss you, but you pissed him off
Does anybody have statistics how many signups comes from 404 ?
Isn't it only way how to raise your bandwidth with shitty traffic ? (when we know that most of the people comming there will never pay for porn, and maybe don;t even have credit card)