Here's what Google said:
https://support.google.com/adwordspolicy/answer/7648803My first comment is that there's never been any
BTC advertisement. Who would pay for it? The
BTC's foundation? This board's webmaster? As there's no corporation, nor an individual owning
BTC, there can't be any kind of advertising. The only ads I've ever seen were for lousy ICOs, shitcoins, trading and exchanges websites where you can make a deposit but not a withdrawal, trading consultants who screw you with the promise to show you how not to get screwed, and super safe crypto-wallets where your private keys are automatically sent to a smart angel in East Russia. Google wants to ban all that? I say thanks Google!
For now, the date on top says June 2018 making it seem indecisiveness from Google's part. Google ads is a huge market for the company not only in terms of money but also the massive traffic it attains. Redirecting these to a shitcoin or a scam ICO could mean disaster for Google itself as it would be sending lambs to the slaughter.
About BTC advertising, why does it need advertising at all? We're already seeing Bitcoin at #1 from the beginning of the cryptocurrency era and every mouth in world has the word at the tip of its tongue.