I never like using stop loss, I would rather just ride out the storm instead of letting a stop hunting whale pick up my coins for cheap. If your in any good coin it will always rebound if you are patient enough to wait it out.
I understand your idea, exchanges are top in market manipulation and this can open investors (especially crumb holders) to sell off, while they prepare to come back into the market with a pump It is advised never to sell all your coin except there are valid news of exit scam. Understand the fundamental of every coin and stay close to the community. It helps to understand the movement of the price