Google announced that starting June, it will ban all crypto related ads. Facebook also recently banned ICO ads on thier platform. two of biggest tech companies: Duopoly. I think this is creating an opportunity for real decentralized platforms for crypto and blockchain related stuff.
Recently very many Bitcoin and Cryptocurrency ads on google. and now there is an issue about the ban on advertising ICO. I think this is just an issue that was developed to bring down the value of Cryptocurrency exchange.