I'm not a Facebook fan anymore. But I still check it daily. Others? Some NEED it. Still others USE it - really, really, use it.
I read of milestones and music gigs. I'm in groups for old railways, radio stuff, local history, like that. I'm a nerd, and I don't care.
I use it to announce my milestones, or to plug blog posts like this. If I score a reaction, I get that buzz. Facebook trades on people's neediness; I'm no different. Call me a hypocrite. I still don't care.
Parish-pump Facebook stuff works. But as people shift elsewhere to talk to their pals, Facebook is increasingly about reaching potential punters and markets. Put brutally, we're product. That in itself is interesting.