This is more or less gambling with some ponzi schemes and the risk of losing it is very high. A lot of people have been burnt by such schemes before and I'm sure when payouts suddenly starts being intermittent, it becomes a clear sign your investments are gone.
That is why it is always advised to invest wise which means nothing but only the evaluation of cryptocurrency that is very much important otherwise these Ponzi schemes out there are very much deceptive and deceiving and can cost you big money.