https://www.theverge.com/2018/4/2/17189880/john-mcafee-bitcoin-cryptocurrency-twitter-ico

Software tycoon turned cryptocurrency enthusiast John McAfee recently revealed that he charges $105,000 for each tweet he sends out promoting digital coins or initial coin offerings (ICO). Last week, McAfee tweeted that his team had written up a guide on how his promotional tweets worked, and posted it to McAfee Crypto Team, an organization McAfee and his team put together to promote ICOs.

FOMO, propaganda and indoctrination. As usual with cryptocurrencies.