There can be an "honest" Ponzi game.
There are no honest Ponzi, as others have said it's an oxymoron.
All Ponzi are scams.Just because he has not run off with the money yet, does not mean he won't.
He will run off with the money eventually, this is guaranteed.So anyone that wins at poker is scamming the other players by all of the anti-ponzi crowd out there.
Again this isn't true, no one is being scammed in poker unless someone is cheating.
It is a fallacy to claim that gambling is a scam because someone loses, as I mentioned in this
post.