This is off topic, but this actually does seem like one of the few areas where crypto could make a difference. Why hasn't there been a good implementation of an

This is off topic, but this actually does seem like one of the few areas where crypto could make a difference. Why hasn't there been a good implementation of an onlyfans style platform that lets someone transfer funds direct from a linked coinbase account or something instead of depending on a Mastercard/Visa for payment processing?