Thanks, I just figured that some people would prefer a chain game where they couldn't lose. It has less of the 'game' aspect, to acommodate a no risk aspect (for people who prefer to stay away from gambling, etc).
This sounds too good to be true. Every buyer except for the last one makes 30%, and the last buyer gets their money back.
Where does all the profit come from? It sounds like you're guaranteed to make a massive loss.
The only way this can make sense is either
a) you have too many coins and want to give them away in an exponentially increasing display of generosity
or
b) it's a scam, and you intend to run away with all the coins at some point
Did I miss a possibility? If not, which is it?