USDT has lots of problem with everything, rumours everywhere that they can't be trusted but yet they are leading the top stable coin chart in the world today, I still use usdt to be honest because if the project is that bad they should be down already, another one is xrp that many hated for no reason or their centralised part until they start showing real usability, we just have to wait and see what will happen
I don't see usdt being in trouble at the moment, but what I do know is that usdt is always hit by bad news about PUD, so many crypto users doubt the potential of usdt, but if you research deeply then you will find out how big of a prospect the usdt has, evidence the most obvious thing is that until now usdt still survives and is the best stablecoin in crypto, I personally always use usdt as a medium of exchange and have never experienced any problems at all,