1. He bought a lot at ICO 2. He cashed out at 15k with 8 BTC (see the market history)
..So he is selling and double his money atm.. happy him.
Clearly you cant read!!
Clearly you do exactly the different of what you write. It's a good marketing strategy due to people think when you are involved in the coin the coin goes to the "moon" and people buy in. That is exactly what you want to get your coins doubled (8K to 16K) . I buy you a beer if I am wrong!