These guidelines are rarely followed anymore. I've been seeing/feeling negativity over here for a long enough time now. Don't know when, but I'll surely quit HN soon. It's like a habit that I have to get out of.
Didn't downvote you, but as he didn't post it here, it's probably not the right idea to set an expectation that he will, and HNers love etiquette as much as they love computers.