They are not worth the cash you pay to them. You're simply tossing cash. Channel that give signal are BS. I have joined a great deal of them and none of them are exact. Be cautious on these sorts of gatherings since it could lead you losing your cash. you can do exchanging all alone by basically applying the fundamentals. You just need to manage the market.
The question asked in OP is like two years old and I am not sure what prompted the thread to be bumped but yeah almost all the signals groups and self-claiming experts are just scammers trying to scam some innocent guys who are new to trading.
I have myself been part of such groups and thankfully I only joined the free ones and one thing I learned about these groups and signals is that, it is better to analyze of your own because at least that ensures you are not being trolled and with time you get better. While if you follow these groups you just get more and more dependent on thee groups who are doing nothing but playing guess games.