I think this scheme is good because when will ponzi slow i will restart it and many players will be waiting for new round. First players will earn and last will be lost so its easy
ponzi will have 0.04BTC i have 1% fee so A get 0.012BTC, B get 0.012BTC In ponzi will be 0.016 so if someone after c paid 0.01 in ponzi will be 0.026 and C will be payed.
why it must be SCAM !!! ? here are a lot of ponzi that were scam but i said it that this is not SCAM. Its only 120% and i have small profit from this , its not that someone have ponzi with 150% and after 1 day is dead