I've had the ponzi argument via public forum on multiple occasions. It comes down to people not knowing what a ponzi scheme is. Early adopters profiting more than late comers =/= ponzi scheme.
100% incorrect, quite ironically.
What about this is incorrect?
In a Ponzi early investors may profit but usually they just think they are profiting as they are paid unrealistic amounts of interest on their investment - that is to attract in more victims. The late comers lose everything (early investors may lose 80% or more) as the scam is run down. Its not about late comers getting a smaller slice of a pie, all of their money is taken and they see none of it back.