because he and his exchanger will face massive withdrawal requests.
It's happening already, even though they haven't disabled the withdrawal features they just kept it under the tab processing with no reply from the customer support when then the usual withdrawal time will be no more than 30 minutes. So definitely something is happening.
And they are saying yes we lost the money but your money is safe with us without disclosing any details but they ran live Q&A to keep the users with their platform and I don't know WTF they are thinking.