People are using Facebook because they want to, not because some weird social power is forcing them to. My friends love it, my parents love it, heck my grandma thinks it's absolutely magical. We get to share things and communicate with family in a way we've never been able to ever. It's not replacing the deep connections and interpersonal relationships—you need to actually meet up with someone and talk to them in person or on the phone for that. But we already have ways to do that!
The annoying people on Facebook are the ones who don't like it, like the author of this article. They're the ones that just post "Dang Facebook sucks more every day" or useless stuff like that and never actually use it for its capabilities. They expect Facebook to do their social for them, when it's really just a tool that you have to use optimistically.