So smart quotes is now an LLM tell? You know that a lot of people write in word processors that automatically replace standard quotes with smart quotes (like, say, MS Word), and that these word processors can then export HTML straight into your block or preserve the smart quotes across a copy & paste? Several blog WYSIWYG editors will also directly insert them as well.
The document doesn't have both in it. It's possible it was edited, but someone else in the thread posted the archive.org original version, and it also doesn't have smart quotes:
(Note also that you can end up with mismatched quotes if you paste in a segment of text from some other source that uses them, which is pretty common in journalism for a fast-changing story.)
