3 ms·What if "Hacker News" has a down vote mechanism also.by afshinmeh 14y agoWhat if "Hacker News" has a down vote mechanism also.xijuan 14y agoIt has a down vote mechanism, well only for comments.. But you have to have more than 500 karmas to get the downvote mechanism.afshinmeh 14y agoOops, I didn't know that! So I wait until I get 500.