Trading risks in the crypto market are very high, and stop-loss is a very important part of trading.
Setting a stop loss in the transaction can manage the loss in the transaction and minimize the loss. It can also protect funds from market fluctuations and prevent the loss of all funds.
I guess this is the major function of the stop lose features on some exchanges, to help protect your capital gains from depreciating when the market crash it execute the trade on your behalf when the price reached the amount set on the stop lose the trade automatically get executed.