Definitely felt that while writing the post. So I don't plan to use this approach. Just like JS-based analytics I don't think most users would object heavily t

Definitely felt that while writing the post. So I don't plan to use this approach. Just like JS-based analytics I don't think most users would object heavily to someone trying to differentiate them from non-interactive bot traffic to get an idea of whether they have any real readers or just bots. But I'm absolutely certain that there are people who will not concede any analysis of the visitor's agent capabilities and behavior as legitimate. The browser sets one boundary, general public another, privacy advocates another. I personally try to err on the side of minimal analytics. But the default idea for people creating sites tends to be that Google Analytics is "fine" and something more privacy-oriented like Plausible or Fathom are the good/ethical option. I'm not sold on that though I'm glad that there are options that are less bad. I doubt most businesses won't throw analytics out entirely but they might be willing to pick something with a better ethics profile.