What I know is that people that uses stop lose are those with high risk trading, those that trade with higher amount of money and professional enough prefer not to use stop lose because they prefer to begin with a very low leverage. These are the kind of traders that trade with even less than 1x leverage, or not more than 1x. For a trader that trade with high amount of money, starting to trade with 0.25x and not going more than 1x, but increased the money to 1x when he noticed the market would favour him. This would bring the entry price closer to the mark price four times more and a slight correction towards its position might lead to profit or reduced loss. I do not know why people do not talk about this before they should think of using stop loss. Maybe because most traders uses low amount of money to trade and starting trading with over 1x or higher leverage. But the truth is, those that profit more about trading have no option than to increase their trading fund, open position with very low amount first and average from less than 1x to 1x or not more than 2x before thinking about stop loss. Traders have different strategies though.