The problem is that, as patio11 once described in detail (https://www.bitsaboutmoney.com/archive/optimal-amount-of-fra...), there are genuine tradeoffs here that people get outraged by the mention of. How many legitimate sales should Stripe block in order to more effectively fight this kind of fraud? Merchants don't want to hear it, and consumers don't either. So financial companies invariably conclude that it's better to raise the question only in careful, indirect ways which could not be misinterpreted as a statement that fraud is good or OK or acceptable.