On stackoverflow the criteria for voting are considerably more concrete, yet it's clear that voting there is strongly biased by vote counts. HN might have more

On stackoverflow the criteria for voting are considerably more concrete, yet it's clear that voting there is strongly biased by vote counts. HN might have more rational voters (though look who's saying so), but they're still human, and the fuzzier criteria, shorter active lives of posts, and volume of comments to scan through probably more than make up for this. (I could've made this same reply to other comments here.)