Yeah, because they got sued for processing payments on some porn sites that weren't taking down revenge porn. They're not puritans, they're concerned about their bottom line, and the lawsuits threatened them with losing lots of money.
They don't need to. I'm saying that we've seen the same pattern for a while now, and puritan groups have enough money/influence to dictate a lot of how the online world looks like now.
I'd argue Visa/Mastercard could deal with the issue if they really wanted to, but as you point out they're following the money, and I wouldn't expect them to do otherwise either. I still think they share the blame (being opportunistic doesn't mean being above criticism), but you're right that more or it lays on other shoulders.
https://en.m.wikipedia.org/wiki/History_of_the_Puritans_in_N...
> some puritan groups
People with the same question:
https://puritanboard.com/threads/who-are-the-modern-puritans...