Comment by grmarcil

This is an absolutely bare-bones feature for HN. It would make the site so much more usable in general. The big case for collapsible comments relative to HN is stories where the top voted comment is only semi-related to the article (usual suspects being security, software freedom, political leaning freedom, ...) but spawns its own megathread and drowns out any hope of other discussions more germane to the original post.