Piety? To who? Simplistic and/or confrontational doesn't mean wrong, even if you don't like the way it's presented.

Just because a comment is short, sharp, and to the point doesn't mean the author hasn't thought out why that's their view.

No one knows everything, that's certainly why I'm on hacker news. I'm here to learn and expand my knowledge. Unfortunately a lot of people on here would rather driveby-downvote than have a discussion to find out why a person might have an opinion like that expressed by the OP.

I tend to abandon account when/if I get enough karma to be able to down vote. I'd rather not have to temptation of dismissing someone that way. It's quite liberating... Is it worth my time to respond? No, move on; yes, let's discuss. Maybe they'll change my mind...