The Rise of the Em-Dash in Hacker News Comments

https://boazsobrado.com/blog/2026/04/15/the-rise-of-the-em-dash-in-hacker-news-comments/

Article

  • Analysis showing em-dash usage in HN comments rose significantly post-ChatGPT
  • Attributed to LLMs’ stylistic preference for em-dashes
  • Data visualization criticized for y-axis starting above zero

Discussion

  • Axis manipulation called out: usage went 19→32%, didn’t double
  • Counterpoint: some humans (e.g. Nietzsche readers) have always used em-dashes
  • Debate: did AI raise human awareness of em-dashes, causing organic adoption?
  • Meta-jokes about ‘rise of HN meta-analysis posts’ proliferated in thread

Discuss on HN


Type Link
Added Apr 16, 2026
Modified Apr 16, 2026