Based on this post.
https://bitcointalk.org/index.php?topic=3133353.0Google doesn't really ban Bitcoin Ads since there is no Bitcoin ads at all. Bitcoin is not being advertised on Facebook or even on Google the reason why we don't need to panic. Google and Facebook banned ICOs, trading and exchange websites. The movement of the price of Bitcoin is normal even though it really takes a lot of time to pump.
Yeah that's correct the google and facebook are just removing those ico related and bitcoin related that they know that is scam only there are so many of them scattered in internet especially on facebook. So that's why they make a move to ban temporary bitcoin ads.