Upvoted.
While I totally agree it could be a massive ponzi, if you get in and get out early, you get your money back. If they keep making money off of it, why would they run with the cash??? Like, why not let the "machine" keep going?

I mean, it would make sense to keep it legit and make more money than by packing up shop and dipping. Plus, if Grant is involved - he's made himself pretty public about his supporting it. It would be easy to find him, should the authorities need to.