Haejin should for all noobs have a disclaimer at the beginning of each post to explain to them that due diligence is required before any investment, that since the time of the post, the market and everything else could have changed by the time you make your investment since the Tweet, Steem or Youtube was posted.
Especially when implying imminent or explosion is happening, the event may have come and gone already and noobs are left hodling crap.
Also, Haejim should explain the volatility of Alt Coins and that profit taking is a key component as a lot of the Alt coins are just pumps sometimes following Haejins lead knowing many of his followers might hodl rather than sell.
But I am a firm supporter of Haejin and good luck that he has found a business in this, but he should warn those at high risk of being manipulated.