Is there any evidence that any USDT/USD trading pairs (of which there are very few) actually allow you to sell USDT and withdraw USD? You can, presumably do a

Is there any evidence that any USDT/USD trading pairs (of which there are very few) actually allow you to sell USDT and withdraw USD? You can, presumably do a USDT->BTC->USD set of transactions, but as long as USDT is artifically kept at ~1:1, this is a money losing scenario due to exchange and transaction fees (at least compared to if you could directly go from USDT->USD).