Isn't that amazing? That's so many people!
Well, I call bullshit.
I try to communicate with everyone I can on my friends list, and I will comment on their posts or message them, I try to at least make sure I don't miss any major life events. Sometimes I still do, but I try not to. I rarely delete someone or ignore their wall posts, and I have never blocked anyone that wasn't obviously a spammer.
I consider Facebook to be more a networking tool, and by "networking", I don't mean in my professional life. I think networking can be used for personal stuff, too - so that you can solve problems when they arise, be part of a support group when something goes wrong for other people - it's just good to be there, and have people know you're there.
At the same time, I kind of hate Facebook, for the obvious emotional reasons. Sometimes, seeing a lot of negative status updates can bring me down, and sometimes, posting negative statuses can bring others down. When someone doesn't friend me back (this happens most with people I know professionally or haven't seen in a long time), or when I find out I've been blocked (especially for unknown reasons). When all of the people I know get together, but don't invite me, sometimes it stings.
It's fun to keep up with other people's drama, and sometimes I admit it is nice to see that my life is going well in comparison to other people - but it also gives me a window to say hey, are you okay? Can I help you in any way? Is there something I can do that would brighten your day? And I do that sometimes. I can keep in touch with friends, and family, and people from school that I barely know but still kind of want to see how their life is going. I can live vicariously through the people I met in Spain who are legitimately archaeologists, and see the world from my computer, through the eyes of people who I have something in common with.
Work people don't add me much, in either job. A lot of the time, even if they do, they put me on limited profiles or end up defriending me later. I've learned to deal with that. It annoys me a little, though, I will admit. If I don't friend someone, I normally message them to say why, unless it's completely obvious that we don't know each other at all whatsoever (to both parties). I hate limited profiles and when someone puts me on one, my trust of them decreases significantly. When people defriend me over minor kerfuffles or for what appears to be no reason at all, I get annoyed. First, tell me why you're defriending me! Is it a misunderstanding? I'd just like to know! Second, why the hell did you friend me/accept my request in the first place?
I always feel like Facebook "friendships" are one sided. I try to reciprocate any contact I get, but in spite of 222 friends, I don't get much contact. Even if I'm contacting people through business, I try to ask how they're doing - and I mean it when I ask, I really do. I don't ask how people are doing if I don't care. I always want to hear what is going on.
Anyway. That's my rant of the day. Hope it didn't bore you too much!