I don't see any problem with ICO information and news being shared in facebook. Facebook is not only meant for communicating with people, it is also built for advertising and for doing some business. I don't see any point of banning crypto-related posts. That is just total nonsense.
Yeah I got your point but they can do want they want and it's there decision. It's all about business as crypto market cap getting bigger, Facebook wants to have there own platform and join crypto currency.