Honestly, the behavior of paypal is abysmal and I wish there to be a real alternative. I despise credit cards and would like to have more options.
I doubt I will ever pay anything for porn, but there are a lot of content creators that can only receive money via paypal/credit card.
I do actually think a government should have some control over its currency, but if the institutions implement their own arbitrary rules, solutions like Bitcoin are the best alternative.
A lot of porn models are becoming the content creators now. The line between your favorite adult actor and your favorite youtuber is growing thinner every day.
Which makes us wonder if one near day we'll see amateur adult content with sponsored products "... brought to you by Questionable VPN!"
So porn models would probably be a thing even if all payment providers stopped their service for porn. It would just be completely counter productive since this form of sex work is probably as safe as it can be. And any life style decision shouldn't be dependent on payment processors.