4 ms·How can we downvote in Hacker News? I only see an Up arrow?by daok 16y agoHow can we downvote in Hacker News? I only see an Up arrow?iamdave 16y agoAllow me to demonstrate.gyardley 16y agoYou need a certain amount of karma - 200, I think - to downvote a comment. You can't downvote an article.