OMG, I love this post. I don't get it either. I don't have a twitter account, and am only on Facebook to talk to my friends that are now in other countries. I would call them if it didn't cost so dang much money.
But, I don't understand everyone following people on twitter that they don't even know. And I don't understand why anyone really cares that a particular person went out on Friday night, or is on their way to the gym. I don't even answer my own phone half the time.