I don't think I'll ever "get" twitter. I'm not wired to understand it.
I read people tweets, people responding to someone/something and I can't figure out what it is. There isn't necessarily a direct link to something that they've responded to so it's just a comment out loose. I don't understand how ANYBODY understands twitter, really.
Twitter is for people who never want to have a conversation, directly to and fro, with anybody.
Twitter > all. Makes everything else obsolete. It is such a valuable source of information.