I suspect this is not an unusual pattern on planet Twitter; see the full post for more details
I've written about my experiences with Twitter before. But I am considering whether I need to stop using it. The problem is too much Twitter -- I'm becoming depressed.
I only follow a small number of people (17 at this point) and most of them are interested in knowledge management. So there is a high signal-to-noise ratio -- most of the tweets are interesting and/or intriguing. But I am finding my mind is turning off. There are so many opinions about communities of practice, so many top ten lists, articles about what you need to know, etc. Either all the world's knowledge problems have been solved and I just need to read about it (if I had the time) or there are so many "answers" I am loathe to add to the pile.