In my life I have encountered many of these kind of "Business opportunities" and they all have the same in common.
Referrals, locking your investment for a period of time, promises of big gains and BIG marketing.
Now just the thought of converting my Bitcoins to their coins automatically gives then an excuse to lose the value and all its customers will lose when time comes.
As the youtubers I guess it's all about the money, they are defenetily cashing in.