0x277b652f…8b32sent to0xc8a65fad…9963·#12,998,800·view on Etherscan
So, at the moment you cannot spend 33M USDT. They are locked, Tether will simply re-issue the tokens and return them to the project. As far as I remember, there is no such mechanism in DAI, miners will not ignore your transactions, so you can control the rest of the money.
However, Poly Network is not a bad project in my opinion. Is it worth it to deal such a serious blow to him? Maybe you should try to negotiate for a symbolic amount (we will assume that this is a payment for a bug bounty). And everyone will forget about it, the team will learn a valuable lesson, and you will receive the respect of the community for years to come.