Exchanges make money mainly through a few ways: transaction fees, slippage, or compliant operations via anti-witch mechanisms. Some people complain that since the underlying logic of perpetual contracts is that exchanges profit from the spread, the anti-witch mechanism becomes particularly awkward—users spend money to participate in trading, so why should they be penalized for being labeled as witch accounts? There is indeed a balancing issue here: platforms need to prevent risks and cheating behaviors, but they also cannot let normal traders pay the price for anti-cheating measures. This contradiction still seems to be unresolved in the operation of the derivatives market.