While some enthusiasts took this as a positive sign for digital currencies, Zuckerberg wrote at the time that he was looking at both the positive and negative aspects of the technology.
These factors lead to the BTC go down nearly 28% in markets
That's how foolish people are facebooks ads hardly matter, facebook new alogorotum makes all pages and ads disappear and if you don't know facebook marketing is on the decline. Instagram is the new best social network to market oneself and that's what most people are doing. So facebook banning ads was not even such a big deal until people made it look big.