I've mentioned something similar in another thread, but I believe this is going to be one of those big ones that goes bust. The real question is only how they are going to do it PR wise, will it be an obvious scam or will they sell a sob story about how their idea didn't work out and that startups usually fail. People are so gullible and inexperienced with money.
One newer form of manipulation that I have seen, but involves altcoins, is the buyout of an old established project and then rug it with sudden and horrible changes. This can be done overtly by visible ownership changes, but also hidden one. Essentially, they are buying up the reputation in order to defraud a large amount than they paid for. Just a big money variant of the pump and dump scam of small coins.