I did make use of copy-trading as a newbie, of course, it was good as you are still learning and gaining some ideas but this is not even effective, you are making yourself a copy to someone else and if he fails, you also fail. There is no perfect strategy in trading and so this copy-trading is not the best option if we wanted to improve and become successful. Building our own is way better and must be endured rather than relying on others. This is also a way of helping ourselves be comfortable and create confidence to face risky and hard decisions.
The problem is what type of trader will allow himself to be copied by someone else and risk their strategy to be revealed? And the truth is that very few traders that are making money in the markets will like to be part of something like that, which means that those that are allowing themselves to be copied do not really know the value of their strategies or do not mind that someone else is copying them because they are not making money anyway with their strategy.
That was the case that copy-trading is not a good idea if we are building ourselves to have a better future. And these traders who allow being copied by someone will certainly don't mind as they know they are not working well. And besides, I don't believe those influencers who want to help others and teach their strategy because successful traders will just share their experience, not their working strategies as they are too clever enough to hide secrets of their success.