I feel like you are being a bit contradictory: the suggestion is to dissuade AI content - isn't that "design[ing] a site to deter group(s) of people that they don't want"? I personally don't want to vibe check every HN comment if I can avoid it, I don't even think you can quantify that in any meaningful way. We can engender a site like that at least in spirit. It may be equally as difficult but it's still worth fighting for.

Rules aren’t known to be a. Easily enforceable in case of AI b. Very dissuading

I don’t think most people read any sort of TOS, site rules, end license agreements, when was the last time you ever did?

Besides, sometimes it’s worth it to keep a rule breaking user if they are interesting and have worthwhile things to say despite their… theoretical conflict with the site intended use. Rules are too crude of a tool. Especially in case of AI they are quite nebulous even in a world where detection would be perfect (it isn’t).

What you want is to design a site that pulls people that value genuine human interaction. Niche sites are already immune to commerce and adversary bots because no one cares/knows about them. Well this site isn’t that niche I guess, some corporate astroturfing happens.

I am on one niche subculture social media and it has suprisingly well made design that is paramount to who it caters and who it dissuades. The result is lack of text ai content even though it isn’t obvious at first glance. LGBT flags are everywhere to dissuade the chuds. Israel flags are present to dissuade the annoying politics ppl from reddit. Lots of artsy stuff to speak to the genuine creativity.

It looks stupid but it isn’t stupid. It’s actually quite ingenious.

HN is probably already dead as it is too high profile in certain circles to avoid mainstream adversarial AI content.