Your comment is very reasonable but I've found that celebrity or wits or intelligence hardly correlates to interesting Twitter stream. Basically, most people who tweet are a waste of time to read. Even at 140 characters at a time.
It's surprisingly hard to find people who consistently say interesting things in such a restricted space.
Overall, I've decided it was so hard that it just wasn't worth my time, so I no longer read Twitter at all.
I too have felt the same way. I occasionally check John Carmack's twitter or some other developers, but that's it.
and when he was around I loved https://twitter.com/devops_borat
It's surprisingly hard to find people who consistently say interesting things in such a restricted space.
Overall, I've decided it was so hard that it just wasn't worth my time, so I no longer read Twitter at all.
Obviously, your mileage may vary.