Im familiar with the concepts of ponzi and pyramid scheme
The new money comes from a fundamental piece of the system itself. THe prime controllers get the transaction fees from the network. These are then passed on to the people who have bought the hashtakers. and staked their coins. Since the returns are based on the transaction fees, they can estimate a range of values for the expected return, which they have give the high and low end of the expected returns. No new money is required here.... just people use a crypto currency. The rest of the people get mroe coins by holding them for a set period of time, as per their POS model.
So please enlighten me how this is similar. You are told what your buying into and you get a share of the profits of it. THere is no outlandish claims (aside possible from the $20 floor, but that is hardly unreasonable to achieve depending on how they set things up.