I think stop loss spoils the bigger opportunity to make profits beecause it might be that after using stop loss, the price might begin to go up again and you will miss the train. If I am trading with $200 in a month, I expect 10% profit which is $20 but that doesn't mean that if I see small profit, I wouldn't close my position because the bird at hand is worth more than millions in the forest.
The importance of stop loss can never be too overemphasized. If you’re a trader and you’re not using stop loss, you’re at more risk of losing your money and getting liquidated. All of the explanations of the OP is more of your property risk management approach in the market, which should be less risky and also not being greedy overall.
If you’re a trader and you’re not using stop loss, you’re just at risk of losing everything in a twinkle of an eye. Markets that do hit stop loss before going your way doesn’t mean you’ve lost, it is simply telling you that your stop loss wasn’t placed well and you can adjust that in your next trade, it doesn’t mean failure that you’ll adjust your stop loss and then end up liquidating more than the amount you’ve set for a trade to be stopped out on.
Stop loss is very good and has a lot of importance for your longevity in the market and also to learn and adjust to market changes. The market are unpredictable, but with proper placement of stop loss and low risk, you’ll get a good chance to finish to be profitable with the right knowledge in the long run.
The better opinion for me has to do with the other traders that think using stop loss protects their position, even though this is true to some extent, how you use it matters a lot. You can't just use stop loss while trading high leverage because be sure to make losses.
However, when you use a stop loss with low leverage and with a realistic target in mind, any sudden dip won't guarantee a loss because the noise in the market is nothing to be worried about.
This boils down to traders having the right knowledge about leverage and position sizing, because it would go a long way in ensuring such a trader knows when to and how to use stop loss to avoid losing their capital.