These strategies are key, and the fact is that when the market is unpredictable, it can lead to hitting multiple stop-losses. However, following them in a good and predictable market condition is a good way to make more profit than loss.
Actually the market is unpredictable, though there are still some analyst who are predicting the market on the right directions to some extent, at least, 80% to 90% correct.
Yeah, stop loss is a good strategy to cut loss, like you mentioned, however, further strategies that help to maximize profit is Patience and experience.
As we may know, many people find it difficult to follow market trends vigorously, they easily close their positions because of fear of losing all. An experienced traders who is following the market trends know when to use the stop loss options and not just apply a stop loss due to fear of loss.
At some points, the market goes dip, and corrections but the inexperienced traders just Dump the market because of fear of losing all.