itch.io

They have been doing this since the 80's. It is why the game Custer's Last Stand for the Atari 2600  and other things got targeted. The company that I used to frequent stores of, Sears, made the Discover card as a non-biased means for such adult entertainment transactions because of Visa doing this back then. And ever since, Mastercard and Visa both have been waging wars against adult entertainment and sex work if you look into it, even going as far as trying to get OF and PH shut down at one point.

Edit: Oh, and I forgot to mention how one conservative dude who owns most of Roblox's stocks also oversees both the two card companies. That recently has been brought to light as of a day or two ago.