HN has a very different personality at weekends versus weekdays. I tend to find most of the stuff I think is cool or interesting gets attention at the weekends, and you'll see slightly more off the wall content and ideas being discussed, whereas the weekdays are notably more "serious business" in tone. Both, I think, have value.
So I wonder if there's maybe a strong element of picking your moment with Show HN posts in order to gain better visibility through the masses of other submissions.
Or maybe - but I think this goes against the culture a bit - Show HN could be its own category at the top. Or we could have particular days of the week/month where, perhaps by convention rather than enforcement, Show HN posts get more attention.
I'm not sure how workable these thoughts are but it's perhaps worth considering ways that Show HN could get a bit more of the spotlight without turning it into something that's endlessly gamed by purveyors of AI slop and other bottom-feeding content.