[op7]

Then when too many of the fradulent payments get charged back then your payment processor drops you

[michaelt]

Sure, chargebacks cost money.

You know what else costs money? When someone wants to give you money, and you misidentify them as a bot and refuse their money.

[Akronymus]

With donations being blocked you keep sitting at 0, with chargebacks you can actually go negative, in a potentially unbounded way.

[bawolff]

Yeah, but one probably costs more money then the other, and it seems plausible its the chargebacks.