The innovation on detecting patterns would be incredible, and in reality I think would be best to evolve into allowing user-decided algorithms that they personally subscribe to.
I would also suggest such conversation would need to be corralled into some sort of secondary HN forum branch, discussion on observations, insights, etc. In general it could be useful for people to also learn about observing patterns for their own sites they own or manage.
I do understand it can facilitate a bit of a "weapons" race, in that if there are bad actors seeking to have many human looking bot accounts (or a single person orchestrating many accounts), then they now too would see how their fingerprints look compared to others as well.
Ultimately I think Elon Musk is right though that to help dissuade spam and organizations-ideologues from shaping narratives and controlling what's allowed to be seen and discussed, that an actual $ cost is required.
Perhaps HN could implement a $5/month (or even higher tiers)? For most on HN, if they are in the tech field, even $50/month for arguably a higher curated-"more moderated" forum, isn't much for the individual - and if a filter to only show posts and/or comments by those paying AND/OR better yet, filtering based on including only votes by those at different tiers - then that is affordable compared to say someone who maybe somehow is running 1,000 users; although unfortunately $50,000/month isn't much for organizations or nations with an agenda, if that's all it takes to keep certain truths suppressed as much and as quickly as possible.