Local sword making company ran into getting blacklisted by processors. These guys are professionals and well known in their business, not some randos. But when it comes to payment processors everyone is small potatoes. https://www.youtube.com/watch?v=nLIcohyT5Dc
They couldn't even find out why it happened. The amount of work they had to do to just get a clue on what was going on was incredible. It took in person visits and directed from bank to bank to bank to understand what happened. And as far as I know they still haven't found out the root cause. They managed to get some work around but who knows how long that will last.
These processors are not content curators / investigators and they're clearly not putting much effort into actually investigating or allowing anyone to dispute these things through a reasonable process.
There's no sense to these systems, you can just be cut off with no warning and the payment processors have no obligation to care or tell anyone anything.