It's not ad hoc, although I realize it looks that way, because the guidelines only cover a few of the principles we go by. The rest are described in the endless (and admittedly rather tedious) stream of moderation comments that I put out, which is why I link to HN Search queries so much.

It won't work to add all of them to the guidelines list because that would make the list so long that few would read it, and (worse) it would make it a bureaucratic sort of document that would be most out of sync with the intended spirit. In the long run I (think I) intend to compile those explanations into short (perhaps one paragraph each) glosses on the guidelines, and make it easy to link to.

As for most commenters not discussing the details of the OP: you're right. But that may be too much to expect in this case. To be able to discuss this topic at all without combusting is already a lot. That's also, btw, why I left my pinned comment open to replies (something I never do), and why the meta (why is this on HN, etc.) discussion is not downweighted the way it normally would be.