Having “come here from Reddit” some time ago, I can vouch that for newly arrived redditors this is moot, since I’m still not offered a downvote button.

I’d guess that by the time the downvote button shows up, most people should have had time to realize HN generally offers more interesting discussion because it works the way Reddiquette FAQ says Reddit should work: do not downvote points of view.

// Now I’ll go back to lurking.