Blackmail attempt. He is silent, if HE gets money.

"Hello dev! How are you? What news from the previous project? KennedyCoin was never released on Yobit. I think that this is bad on your part. I have over 200,000 JFK and demand compensation, otherwise I will have to tell you in the next topic about what you are doing. Thus, your bigfoot-ICO collapse. Compensate me JFK at a price of 0.000002/JFK and I'm silent."