Actually that's a bit incorrect. Cam sites are typically owned by men and their payment processors are the ones that accept the credit cards. Problem is that there are men that aren't on cam sites to just pay for a show and go about their day. Some get angry when their push for personal details isn't given or when they demand to meet the model in person isn't possible and end up trying to reverse the monies they spent for a show they received in full aka chargebacks. Chargebacks are the #1 issue on any cam site platform which is why btc is actually a great tool because the person pays and the show is given where he can't just reverse the funds because she wouldnn't marry him, or meet him for in person sex or some other odd request like her personal phone number etc. So all in all it keeps people on the level. There are even some men that will claim fraud stating someone stole their credit card when they were in fact the users of the purchase. So again maybe not bitcoin because of it's fees but another crypto currency may be even easier.