after seeing a twitter at 11 points I'm not sure I'd agree.
http://scrapbook.akkartik.name/post/4424779/are-crowds-wise-...
I come here for new and articles on running a business, technology, and to help others.
clicking through to a 1 sentence twitter from my rss readers is not a good use of my time.
I can see the place for something like twitter but I don't think that place is something like hacker news.
Short items can be worth talking about. Comments are usually shorter than the posts they comment on, and I frequently find comments that are more interesting than their parents.
to each their own however.