Thus they will demand the charge to be reverted and thus, many charges being disputed simply because of people’s prudishness. And then porn site operators have high fraud rates. I wonder if they are also more liable to become victims of card testing.
I think honest people would concede that there are many, many legit issues around chargebacks. But if it's about money, then just say it's about money and everyone can sit down and go to work on finding methods of reducing chargebacks that actually work.
Now when you say 'but it's only going to be used by the sex industry', you're adding another area of high fraud on top. It's hardly surprising that financial companies want nothing to do with two high-risk sectors sandwiched on top of each other.