About

Somewhere around 2024 the em dash stopped being punctuation and started being an accusation. I wanted to know whether the pattern was real or just vibes, so I counted. 143,126 em dashes across 80,913 posts from 42 technology blogs, every one of them from the blog's own public archive.

The answer is more interesting than either side of the argument. Some blogs really did change sharply. Others have written this way for fifteen years. A couple went the other direction. None of that tells you who used a language model, and this site does not pretend otherwise — see Method for what the numbers can and cannot carry.

Not affiliated with, endorsed by, or speaking for any company measured here. If you run one of these blogs and think a number is wrong, it probably is for a reason listed under Method — a redesign that broke extraction, a sitemap that hides your archive, a date the page never states. Those are all fixable.

How it is built

A TypeScript crawler writes one committed snapshot; an Astro site renders it statically. Charts are Kumo over ECharts. Nothing is fetched at page load, and the whole corpus is recrawlable from scratch by anyone with the repo.