I assume it's because your original question, vi/vim vs. emacs is a decades old flamebait question, and it probably seems unlikely to some people that anyone could become a proficient emacs user and end up on Hacker News without ever encountering at least the jokes about vim vs emacs holy wars.

I increasingly see posts on HN about vim, rather than emacs. I like emacs, but wonder whether it's worth trying to use vim instead of emacs. I honestly couldn't give a damn whether some nerds like to get their knickers in a twist re. which editor is best.