This is a fascinating shift, especially because it shows that “sounding human” is much more nuanced than simply making AI write shorter answers.

The part about em dashes and semicolons caught my attention, but I actually found the rise in words like “perhaps” and “arguably” even more interesting. It feels like the AI-writing fingerprint is not disappearing so much as moving around. Once people learn to recognize one pattern, another one quietly takes its place.

I also like that the post points out the answers are actually getting longer while the individual sentences are getting shorter. That sounds like a small stylistic change, but it can make a surprisingly big difference in how effortless something feels to read.

It makes me wonder how long these little “AI tells” will remain useful as detection signals. The more models optimize for natural writing, the harder it becomes to distinguish style from actual authorship. Really interesting analysis.