Trading without setting a stop loss is not good for me because i will be risking my money. Cryptocurrencies are volatile that means anytime i can lose or win!
By applying stop loss in my trades i will decrease loss because i will know the point that i will be going to lose if my trades will fail.

I always recommend using stop-loss no matter how professional you are, we may be professional traders but we are not the one who arranges coins prices.