I'm curious about this trend. Perhaps someone could reply with data and their methodology.
Why don't you ask ChatGPT? ^_^;
ime, "Ask HN" is not a place you go looking for a specific answer, it is a place for advice, personal stories, and general discussion. Those are the _last_ things I'd ask ChatGPT about.
Unfortunately the Hacker News BigQuery dataset hasn't been updated since Sep 2022, otherwise this question would be as easy as a SQL query.