Dr. Stallman also reminds us that Facebook is bad. It doesn't respect the users and their freedom against mass surveillance. http://stallman.org/facebook.html
Yes, because Stallman is fictional. I'm fictional. Anyone who isn't on Facebook doesn't count as a person.
Does it make any practical difference? I'm not sure. Being totally invisible to surveillance may be next to impossible, but I found that action on the part of Facebook to be needlessly over the top.