That's funny; I have yet to see any of these supposed next-gen blockchain solutions / cryptocurrencies (other than Bitcoin) do a single useful thing. My spam box is full of new altcoins peddling their ICOs as a sort of feverish cash grab.

Also, trying to propose blockchain technology as a solution for decentralized communications is like using a jackhammer on a nail. Completely wrong tool for the job, and grossly impractical.