Do you honestly think the ponzi threads posted here are comparable to nigerian email scams and indentity thieves or are you just grasping at straws to try make a point?
Yes. Ponzi scams are a felony crime. Knowingly participating in them with the intention of making a profit is also a felony. When they involve real money, people who turn a net profit on Ponzis often have their asssets seized to pay off those who took a loss. They cause incalculable economic damage, and that is why they are illegal.
They are as bad, or worse, than Nigerian email scams. Anyone who participates in one knowingly is a criminal himself, whether or not they've gotten around to enforcing the law yet.