We are discussing two things here one is copy trading, even I have not seen any copy traders having stop loss because it will be recorded against their name as a lose which will hamper their profile, for example you will see copy traders they would be running the algo for over an year and so but they never use stop loss and it makes sense because let's say they are trading with $100 and let's see they have a risk margin of 20% then stop loss will be applied at $80, but if they don't apply stop loss then the asset will lie in their wallet until the sell price hits and there is very rare chance of coin going zero unless it goes bankrupt.
I have intentionally ignored to mention anything about signal providers as they are the most widely used scam where someone who have limited knowledge about crypto recommends us on what to buy and sell.
If you are not really aware of the signal providers, you will really fall into their traps, thinking that you will have an opportunity to earn cryptocurrency. So extra caution and wisdom are needed in such instances.
Now, in copy trading, I have not seen any ads here that promote influencers who say that they can make money from copy trading and that even if you don't know how, you can make money. say such things because they are paid.
Then another thing: copy trading has a paring risk that can be given to any investor here in truth if they only find out about it.
I do not like to entirely discourage traders, there are good signal providers just as there are bad signal providers, only that people are not so informative about the right one to choose and the consistency of signal providers most times is questionable. But the social media age has spoiled a lot of things, there are fake ones everywhere and they are the most popular simply because they have marketing and influencing skills. However, these several providers are in categories, there are some that will lose your money pretty fast, there are some that will win very fast but lose the money later, and there are some that will continue to lose and win without any meaningful success. If I were anyone, I would go for those who win the money pretty fast but later lose it. But what I would do differently is to manage my account better than them so that it doesn't ruin it later. This is particularly true if the trader has a higher than 60% winning, I believe the lack of management and poor emotional handling causes their latter losses, this is where you come in.
If you are a good trader yourself, you would know that the market is not always rosy for you no matter how much you try. At times, your strategy is being challenged by the market, it's possible that other strategies are flourishing at that time, which makes the market tricky, proper risk and account management are mostly needed by then which the providers lack in most cases. They can't of course be absolved of the blame but as a smart person, you can adjust things for your success especially those that are 60% + in their winning capacity.