I think the use of stop lose is optional, the only people I always recommend to use stop lose frequently are the newbies that are just starting to trade, I believe that will help them cut their lose incase trade goes against them. I can't really remember the last time I used stop loss in a trade, I just make sure I don my analysis well then I enter a trade. Mostly whenever I enter a trade and I use stop loss, immediately my stop loss have been hit, then the coin will bounce back that's why I don't really use it again, I always make sure I monitor my trade myself and I always know when to leave a trade. But I know some people that can't trade without stop loss and I don't think it's a bad idea, we all have different pattern of trading and I always advice people to have their own pattern and don't copy what others are doing, learn to do what works for you.