Accusing a newspaper of being a ponzi scheme? That makes no sense.
It requires people to keep investing their money for it to continue. Jeff Bezos could take all of that money and they would be left with nothing, even if they paid for a yearly subscription.
That is more of the definition of a Ponzi than Bitcoin which would require every user to sell their bitcoins (to people willing to buy them), or however they figure Bitcoin is a Ponzi.
Yeah, I can see how people would need to keep putting money into it for it to be profitable and to continue. Although, this isn't the same thing as a ponzi scheme which promises return on investment to the investors. But I see the angle you are coming from on it.