Adult film industry will very much be hyped about this especially they can be anonymous in the eyes of those authorities who are watching over them because they will be like given freedom on their line of work.
Also you don't need to use your credit card now which can be tracked by your wife or parents buying some goody things or even subscribing in an adult forum. This is a great idea that can gives more security for the subscribers with so much pleasure. I know this project will succeed, because either you admit it or not we all want this thing.