...Well, traders can use technical analysis or fundamental analysis to predict the price, but this factor can guarantee success in future trading. Sometimes those analyses can't work well if there is bad news spreading suddenly.
Of course, it is very important to use technical analysis or fundamental analysis to predict prices, but it is equally important to comply with risk management. After all, if you open orders for your entire balance and do not use stop loss, then your margin trading will end very quickly.
I agree that stop loss is a crucial feature that an exchange must have and as a trader its really advised to use stop loss to prevent capital loss instantly. Also reasonable leverage is needed to prevent our greed from losing more capital instantly. We need to use our money that we can afford to lose in future trading otherwise we will get panic when its suddenly dump.