When a bank fails, everyone who borrowed from the bank doesn't suddenly not have to pay their debts anymore. There is no reason why Hhampuz would not need to repay what he owes BestMixer
And I don't see BestMixer starting a thread in this forum section accusing Hhampuz of embezzling funds. No arrests have been made so it's not like they can't spend a minute (or an hour, I don't know about their OPSEC) to create a thread. I also don't see anyone, DT or not, red-tagging Hhampuz, so it seems the consensus is that he isn't a scammer.
There are a number of reasons why BestMixer might not be immediately looking for the money or be opening a scam accusation, and none of these reasons are an excuse for Hhampuz to be taking the money for himself.
Further, lauda has made it clear that Hhampuz is not going to be labeled a scammer. Recent history has shown that those who oppose lauda end up getting excluded from DT and labeled a scammer, there are a number of recent examples of this.