-snip-Next year at this time you will be a millionaire

Or bankrupt, most likely.
But to be honest, such groups are very good at attracting new customers and spend a lot of money on marketing - efforts that I would like to see in some of my Altcoin projects ... but that is another topic.
Especially inexperienced users fall relatively quickly on unbelievable promises of profits, postings of Playstations and cars that you could buy with the winnings, ... purely. That the only winners are actually only those who post the signals, one realizes only after the first lost dollars. To get the money back in is as good as impossible, at least with such groups.
But at least you have the certainty that the money is not gone, it just belongs to someone else ... and he can continue to post pictures of newly bought cars and Playstations.