https://boazsobrado.com/blog/2026/04/15/the-rise-of-the-em-dash-in-hacker-news-comments/
Article
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Analysis showing em-dash usage in HN comments rose significantly post-ChatGPT
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Attributed to LLMs’ stylistic preference for em-dashes
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Data visualization criticized for y-axis starting above zero
Discussion
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Axis manipulation called out: usage went 19→32%, didn’t double
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Counterpoint: some humans (e.g. Nietzsche readers) have always used em-dashes
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Debate: did AI raise human awareness of em-dashes, causing organic adoption?
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Meta-jokes about ‘rise of HN meta-analysis posts’ proliferated in thread
Discuss on HN