Social Media and other popular internet giants don't want to help scammers to victimize their users that's why it's not impossible that also Google will impose on banning ICOs ads on their platform.
Cryptocurrency is the future of our economy and trade and it's also the way that the bad guys can get money from the people who wanted to adapt this future monetary.
Google should ban the Crypto and other related in order for them not to help the scams and frauds getting money to their users.