few stable coins have price movements so it is difficult to be able to get profits so I prefer not to use stable coins for trading, but if you are a new trader and want to do long-term traders then stable coins can be one of your choices.
If you are into trading and seek profits for volatility then stable coins is not suitable for you since there's no price changes of it and it will only be good for those user who seeks an alternative currency which they wouldn't have to worry for them even if they left there coins for many days.
USDT is somehow stable, but the most important thing that the token increase but most of investors need to gain profits from it.
The one thing annoyed me for Tusd is huge withdrawal fee on binance and it's not good for me since I'm kinda conservative with fee's and profits that's why I prefer TUSD over usdt since TUSD got lower fee and much faster transaction.