You technically can trade your USDT for 1 dollar to the issuer (I don't know how, but it is probably harder than just going to market and selling) But this is

You technically can trade your USDT for 1 dollar to the issuer (I don't know how, but it is probably harder than just going to market and selling) But this is people buying and selling their USDT, in a market, they can try to sell for a any price and if there is a lot of people trying to sell and not so much trying to buy, it naturally goes down in price This variation though, while large, isn't that uncommon AFAIK