Its a ponzi sheme!
It's nothing like a ponzi scheme actually. There are no "levels" or anything like that. Once each pot threshold is reached and paid out (i.e. after a maximum of 11 pay-ins) it starts over at 0. But it's not based on getting other users "under" you or anything like a ponzi scheme.
High return with small pay in
= PONZI SHEMENo, I'm afraid your understanding is incorrect. On this site, only one of the 11 pay-ins will be the winner (the last one). So it's more similar to a raffle if anything, but it's based on your timing and amount strategy rather than pure luck. Again, nothing like a ponzi scheme, at all.