You should have your nose in your Twitter stream all the time so you don't miss these kinds of important tweets

-- Signal to noise ratio. Needed in any emergency.

But this in conflict with Twitter's biz model/direction. That's the problem. This is a negative, step back for a use of the service more valuable to society. The "eyballs" to sell "stuff" biz model is not a great contributor to civiliation. Arguably, twitter has more potential.