All I can say on the subject is that I don't like ponzies and excluding a minimum all should go back to the gamblers. Ponzi should keep going AND repay till it eventually cannot repay as it repaid too many commissions, then you go away with that not with that many unpaid users, if done this way only a small amount would go on maker's pocket, i think there was a few of those with smart contract.

Now a ponzi isn't a investment and whatever is sent there should be considered lost and whatever comes back a miracle, not sure why anyone thought any ponzi could behave differently, KLYE had a CLAM stake ponzi, where users would invest in the ponzi and they would get the funds back as soon as it's staked, minus a commission.