There is a high probability that several exchanges should wait for $PUMP to go live before returning the U that was pre-sold last night. If you withdraw U now, users will definitely withdraw U, triggering a large amount of redemption on the exchange. If it can be traded, he will return the U, or let your U be displayed on the exchange, but it still cannot be withdrawn. To trigger you to generate a transaction $PUMP, so that the U deposited by the users last night also stayed on the exchange and continued to transfuse blood to the exchange. From the perspective of an exchange, what choice would you make?