Right, so wouldn't it be nice if they were using an L2 sub-chain (a bank) that rolled up transactions so that this transaction could have been flagged and rejected. The need for these intermediaries to help the general public not get fucked is clear. The existing tech just kinda sucks. There's a world where the root chain is objective and transparent and distributed but where for most any practical application people interface with the chain at layer 2 and subject to any sort of social restraints and regulations they want to put in place.