So as you might have already heard, Facebook has taken a step against crypto ads asking people to participate in ICOs etc. And in the same time, bitcoin value has experienced quite a significant fall.
Is this bitcoin value fall an affect of this ban by FB?
It may not be the only reason but I would say it will surely have some impact on crypt market cap and ICOs as well.
Facebook didn't ban crypto ads they just stop promoting the crypto currency ads through paid promotion and it made lot of panic around the investors and leads to price fall but that is not the main factor of price fall other factors also caused this such as regulations by many countries.
But I don't think bitcoin value largely affected by the bitcoin ban because bitcoin is already known all around the world and no one is promoting bitcoin through paid promotions.But the newly launched ICOs maybe affected little bit but not a significant level because still they can run facebook campaign to advertise around the facebook.