If you are lucky you can get a good group. Many groups scam. Many searches may get. But most groups scam.
In my opinion, you can make a good profit by researching coins on your own without joining a group. Everything is possible if you work hard.
It doesnt really need luck but rather in depth research and own jurisdiction when trying out to find out which one is really worth for you to join on because there are some free groups which does give out some
considerable signals which you can neither add up into your own analysis or would simply be following it and since you do have the full control or decisioning then its up to your choice.
You are the ones who could determine if its really worth for you to consider or would simply avoid or skip out.