That’s how everybody in academia, tech, and published authors in general used to write.
replyWhere do you think the LLM is getting it from? ^_^
the full on em dash requires a different character than - or --
replyit was generated that way, or else this person happens to know the correct combination of buttons to make that happen.
in 2026, at least 20-40% of social media traffic is bots (and probably higher with better LLMs), so it is usually safer to just assume.