There are a lot of victims here. But curiously enough, none of them were hurt by the evil adult content exisiting.
The culprits are activists trying to rule what you can play. First victim are payment processors. Second victim are platforms threatened by the payment processors to lose their means of existing. Third victim are developers relying on those platforms. And forth vicims are the customers that just like to play their smut in peace.
Please do not try to paint Itch as profit oriented. Credit card companies are. Itch is not. Itch has free revenue share and does not even sell your data and plasters you with advertisement. Go visit GameJolt to see the difference.