I upvote to say "this is worth reading". I downvote to say "this is not worth reading". "Worth reading" means "worth reading and appropriate to Hacker News".

I upvote to say "this is worth reading". I downvote to say "this is not worth reading". "Worth reading" means "worth reading and appropriate to Hacker News". No doubt what I, or anyone, considers worth reading has some correlation with agreeing, but not 100%.