That might be the "whole point" but that is not how everyone uses it. I have a facebook account myself which contains nothing but a username, a generic artsy av

That might be the "whole point" but that is not how everyone uses it. I have a facebook account myself which contains nothing but a username, a generic artsy avatar and a list of popular facebook pages I like to keep tabs on. I dont share any personal information and I dont have "friends" on facebook. This is all purely out of convenience. If I wanted to go full on stealth mode I could have used Tor at which point my account would not give facebook any information apart from a couple of "like" clicks from a super generic gray faced account. Activists can create these accounts and have a place where they can tell the world about their experiences without risk of being found out. They dont need to give out their IP addresses, they dont need to give out addresses. All they need is a cause and a way to speak and, given luck, people will start listening. Now at least one small avenue of communication has been closed.