Interesting, does the HN system replace three dots (...) with a space in titles? The title of the article contains (`...`), but the title here just has a space.
macos (or some application(s) on macos) also seems to use a unicode version of double quotes " instead of the standard ascii one. I spent a ridiculous amount of time debugging a line in a shell script that had the unicode quotes instead of "normal" ones and broke in ways that were horrible to figure out. Eventually I discovered that he had composed the line in Slack and pasted it in. Definitely something to watch out for!
For reference:
TextEdit - Preferences - Disable 'Smart Quotes' and 'Smart Dashes'
I'd put my money on an automatic HN thing, it massages titles a fair amount.