Another fud to bring the cryptocurencies down. I think we should see this as another attack and bitcoin price may come down because of the way many people on Facebook may interpret this. Bitcoin and blickchain technology can been used for scam but that doesn't mean any other forms of money can also be used for scam and fund raising. Facebook and Microsoft were in favor of bitcoin and other cryptocurencies before but lately there have started to attacked it for the reason best known to them.
Actually, I expected that the banning will take effect this month in which not only Facebook will ban the crypto currencies but also the Twitter and the Google will join the banning too as it was reported early this year but i wonder now that still Crypto currencies can still be seen in these sites in which the social media campaign advertising is still on going without any issues.
It's not fud when you are really banning ico ads and such. Fud means it's made up to scare people, not facts that are happening or going to happen you know.