So is using a stop loss good or bad?
Do we have traders that trade without them, if yes what's your win ratio using this strategy?
However in the overwhelming majority of the cases a stop loss is a good thing and people need to use it, otherwise the losses they will incur will be massive, now it is true that a stop loss that is too tight may cause problems but this can easily be fixed by increasing the range of the stop loss while reducing the size of your position.