An honest ponzi is still a ponzi. If you google the word ponzi, the keyword scam shows up in every search. Simply because the whole Ponzi scheme system is flawed, and anyone trying to profit off of it, will "eventually" get scammed off of his coins because you can't afford to pay him out. So you may be honest for now, but when your ponzi will fall apart and you take off with X coins, you will be a scammer. So are all the people hosting ponzis.