On any site where there is a voting mechanism, you're going to have a certain amount of groupthink. And likewise, on nearly every such site (especially HN), complaining about being down voted is often like throwing gasoline on a fire.

There has been discussion about how to improve the site, sometimes from PG himself, sometimes from others. It isn't perfect, but in comparing the signal-to-noise ratio of HN to some of those other sites, I find that HN shines. Do you have any specific ideas on how to improve things here?