USDT has already lost its credibility in terms of maintaining a value that equals to a ratio of 1USDT = at all times 1USD. It has gone over and under the 1USD level a couple of times now. It's just another shitty method to scam people -- the worst thing is that exchanges knowingly allow this to happen by supporting this rubbish token to be further distributed. It was an initiative doomed to fail from the very first moment it came to life. If you want to be centralized even harder than what governments do with your fiat holdings, then go ahead and dive into Tether. Centralization on top of more centralization.