Cryptonick turned off commenting on his videos a few days ago, then deleted some videos and now his whole channel and twitter are gone.
While yes I think these people have 'talked up' a product, have earned money questionably, if they didn't actually create the product, I'm not sure why so many people are attacking those people like Nick. At the end of the day you invested your money, no one forced you to do that, you got greedy and have gotten burnt.