Comments here, generally, should contribute to or advance the discussion. I'm having trouble seeing how pointing out a typo to other HN readers -- who can't fi

Comments here, generally, should contribute to or advance the discussion. I'm having trouble seeing how pointing out a typo to other HN readers -- who can't fix it -- benefits any of us. If you felt inclined to point it out to someone, you should have pointed it to the author (who conveniently provided a way to contact him). If we always pointed out every typo or grammatical error in every submission (as users on some other discussion sites tend to do), this comments section would be full of them and the quality of the site would quickly diminish.