Let them ban it, @surpassinggoogle will kick off. Jokes apart. This isn't a nice news. I guess they want to avoid another potential scam, but then, with the way they have gone about it, they are not willing to give anyone a chance. This will cause potential harm on the market, at a time where, for two days now, the price is just picking up. Will have to read more and come back here to share another view. They are even willing to let go of the income they earn from crypto currency, which is about 4% you said? This will strike fear in people's heart because Google is actually big, and knowing they are willing to ban ads and let go of that significant income, would make people panic the more.