The market these past couple of days has sent countless long traders packing. It's not that their skills are lacking, but the market has been way too extreme—sometimes, even setting a stop-loss doesn't help at all. What's worse is that many decentralized exchanges have run into various issues at critical moments: Only allowing deposits but not withdrawals, failing to buy at low prices, matching errors... all of these expose the limitations in system design and vision. In fact, exchanges without vision are the ones most prone to showing these common flaws.