Frankly I don't like these kind of pump and dump games from McAfee. It's just don't fair enough. He understood that he can manipulate the market and makes millions on these crappy "forecasts".
Don't be naive. This is how it works in the real world. Look at the stock market, look at corruption in each country. The powerfull people are always benefiting themselves somehow, manipulating what they can. The darwin's law can be applied to all fields, and cryptocurrencies are not exception.
The problem lies on those who can't handle, who are not educated and let themselves control by the emotions. Those who sold everything to invest all the money, those who can't balance the things, those who do not use theire brains and want to get rich without research, work, patient and intelligence. In the end they start to panic, they are afraid, they sell everything when they should hold and be patient, afterward guess what.... they get burnt.