In any case, the number of comments on a link doesn't seem very highly correlated with its quality: http://news.ycombinator.com/item?id=106893
The number of comments just mean that people have something to say about an specific thread.
Hmm... That's an interesting question. How do we actually measure quality?
How we actually measure quality?... Hmmm, that would make a great startup right?
And I really resist the urge to post comments that don't give a perspective, an opinion, or a fact. Often I really want to write a "yeah cool" or "LOL" comment, but I don't. There are plenty of those elsewhere on the net.
Sometimes I fail though.. http://news.ycombinator.com/item?id=106983
and so did i....
It's an information problem. We can determine from comment contents what about an article warranted feedback, but we cannot determine anything from the lack of comment (i.e. the one that never gets posted).
Better silence than 100s of inane comments.