Be careful with any kind of signal. As a rule, these signals are taken from other places and relayed, so it becomes impossible to find out the causal relationship of a signal.
Also, you must participate in 90% of transactions so that the signals bring at least some kind of profit.
As I understand it, you need to analyze all the information provided, since each signal can correspond to certain trading resources and cannot be used on all trading exchanges. Although it seems to me that professional traders should pay minimal attention to such signals.
Professional traders are the ones who give out the signals, and usually they charge that. They run those paid groups.
I don`t think that you need to participate in in 90% of transactions to make some profit, usually the signal contains
information when to buy and when to sell, they tell you 5% safe exit, 20% risky. You choose when to get out. If you
are greedy and wait for maximum profit, you can easily lose money. The free groups I follow usually do things like that.
