I'd agree that there is no significant difference in accountability between content farms and AI. But I think that's burying the lede because what makes HN so appealing to many is the personally written blogposts and experts in specific fields or silly hobby projects. AI has the unique ability to mimick all of that for highly specific audiences with significantly lower cost and effort. This would impact curation efforts of many different user-generated websites and posts and could create a new status quo where a nobody could be treated guilty of AI-Generated articles, SEO hacking and upvote manipulation before entertaining the thought that a natural person could be making their first concerted effort for their reputation and prove their honesty.
For now HN is a bastion of conversation across many countries and domains