Just a note - sometimes, the percentage statistics for masternodes returns can be inflated due to an overpriced coin. I once held a masternode coin that was definitely not a scam... However, it was pumped 6,000% on an illiquid exchange, and the stats, for a brief period, began showing pretty entertaining results ($2,500 return per day on a single MN). These were real statistics, but they were, of course, short lived. I can't discern whether this particular project is a scam or not, but do keep in mind that it's possible for something to not be a Ponzi even if those insane numbers come up. Although, if the high return rates stay high for a few more days, I guess it's safe to assume something fishy is going on.