Its a good move not allowing advertising of ICOs on Facebook in my mind - there are so many scams in the land of ICOS, and allowing them to be advertised through FB just means more people will be scammed. Im not saying all ICOs are scams but there have been a fair few!

It means that if people want to invest in something they will have to do more of their own research rather than just have an ad infront of them which makes something sound to good to be true