As someone who's received a nontrivial amount of downvotes in this community and others, I can confidently say that I appreciate them as a mechanism. Almost eve

As someone who's received a nontrivial amount of downvotes in this community and others, I can confidently say that I appreciate them as a mechanism. Almost every downvote that I've received was for a legitimate reason - a few were just out of disagreement, but that's the exception rather than the rule. In a way, it does create an echo chamber: when the community consistently downvotes things that don't conform to X (in HN's case, X usually being "well-reasoned commentary relevant to the thread"), people tend to shy away from those things. One could consider the utter lack of response gifs on HN "groupthink", in the sense that everyone knows the community is unfriendly to them so they don't post them (even when they're funny).