I really don't know what you're trying to say. If you look at the comment feeds of dang and me (or sctb or pg before that), you'll be hard-up finding a single day in the past 15+ years where there haven't been several comments from at least one of us (usually more) asking or reminding people to observe the guidelines. That doesn't mean we claim or even try to cleanse HN of anything bad ever being visible; the immune system takes time. But HN would not survive more than a few days if the moderation was as absent as you seem to be suggesting.
I really don't know what you're trying to say. If you look at the comment feeds of dang and me (or sctb or pg before that), you'll be hard-up finding a single day in the past 15+ years where there haven't been several comments from at least one of us (usually more) asking or reminding people to observe the guidelines. That doesn't mean we claim or even try to cleanse HN of anything bad ever being visible; the immune system takes time. But HN would not survive more than a few days if the moderation was as absent as you seem to be suggesting.