> Also, doesn't HN rank upvotes based on karma and account age? You can't downvote until reaching 500(?) and having your account for a certain duration of time.

> Also, doesn't HN rank upvotes based on karma and account age? You can't downvote until reaching 500(?) and having your account for a certain duration of time. That sounds about right. There seem to be some additional rules, too. For instance, there are certain comments I don't see a downvote button for, and I have no clue why.