I'm afraid Gary really has it spot on
There is absolutely no differrence between people discussing "off topic" subjects on an internet forum and people having conversations on Twitter. It's exactly the same thing, just done through a different interface. In fact, arguably, a lot of the conversations on Twitter are far more interesting
And I'm sure the likes of Stephen Fry, Bill Bailey, Lily Allen, Richard Branson, to name but a few, would greatly appreciate being refered to as "washed up celebs" :thumbsdown: Again, it's not just about "following" these people, it's about interacting with them. I can't think of any other medium that would allow me to speak directly to one of these people or even engage in conversation with them :shrug: