The topic was previously discussed on https://news.ycombinator.com/item?id=33945628 and the moderators have said that generated comments are not permitted on HN: "They're already banned—HN has never allowed bots or generated comments. If we have to, we'll add that explicitly to https://news.ycombinator.com/newsguidelines.html, but I'd say it already follows from the rules that are in there. We don't want canned responses from humans either!"
Why they've never updated the guidelines page is a mystery.
HN must be humans only. AI is not going to add to curious discussion and humans would be driven away once the slop reaches critical-mess. Eventually it would be a small handful of humans and a myriad of bots discussing topics much like what 4chan has devolved into. AI would make the site appear active whilst actively killing it and discussions would eventually be driven entirely by AI by which point the only logical direction would be to remove the news subdomain.
Why they've never updated the guidelines page is a mystery.