stablecoins are really useful in this market that is always volatile, you can keep your assets safe at stablecoins, useful in buying and selling very large because their value is not lost, and traders need stablecoin.
Anyone who sees negativity in stablecoins is not a real trader. The crypto market is highly volatile and wise traders lock profit in stable coins. Some even hold stablecoins to take advantage of the market during massive dips, which is a nice concept. Aside the legal issues faced by Tether (USDT) founders now and then, I don't see any negative concerns for stablecoins.