lol, no.
IMO, having a Facebook account and updating it regularly is diagnostic of clinical narcissism. If not clinical narcissism, at least pathological egocentrism.
This'd be in your informed medical opinion, yes? You are using words like "clinical" as if they mean something here, that's all.
Or is it just hyperbole for effect?
Facebook is a place like any other; it has your fambly in it, your friends. People who you hardly speak to, others with whom you shoot the shit daily.
Sure, there are the attention whores, the egocentrists, and whatnot, but that's just people for you.