The amount of horribly bad posts on HN has reached a proportion where they're no longer exceptions, they characterize the site as a whole.
Personally I've noticed my participation drop in the last few months because of this. There are fewer and fewer people interested in engaging in a discussion, and more and more religious zealotry where it's clear poster has zero interest in opposing views, and will stoop consistently to hostility and fundamental indecency when confronted.