Getting tired of all the bystander commentary. It's a toy for rich people. If there's 0 chance you're going to buy it, who really cares about your opinion.
As for the rest, this is the Internet, and a cat may look at a king.
It's like a sucker's (or a fraudster's) war cry to say that the people who are already hooked into a venture are the only ones who should be allowed to point out that it might be a scam.