I'm sorry, perhaps you are unaware of this fact: the term "Ponzi scheme" has a specific meaning, which an activity either conforms to or it does not. If it does conform to that definition, then you should be able to present
material facts about the activity which would cause a reasonable person to reach that conclusion.
Likewise, when a person makes statements about the mental states of another, such as what those people did or did not know, that is a statement of fact. If you assert those facts, then you should have evidence to demonstrate that such things are true.
Unfortunately, all you have are poorly formed, emotionally charged opinions informed by a couple of articles you read on TechCrunch. Or maybe the WSJ if you're a little more rigorous. What you don't have are sufficient facts to warrant the conclusions you're defending, unless -- and this is my point -- you have such a low standard for truth that practically any statement can be considered substantiated, so long as it agrees with your prejudices about who deserves wealth and what constitutes success.