Why they do create trading signal channel?  Then only one thing comes to my mind on where those creators of those group neither they would build up a group either free or paid ones but most of them do have still the same target or aim which is to lure in people do follow up their trade but doesn't mean those signals are effective because most groups are just total fraud and just using up others investors money just to sell of their bags when the price had been pumped up by those noobs who just joined in.