I thought I was being facetious, but a quick superficial search says apparently that's a real thing!?

But I wouldn't post them directly on-site because that's obnoxious; (No matter my personal opinion on emacs. :-P )

:wq!

Indeed it is, and hence my comment - see, e.g., https://news.ycombinator.com/item?id=42256409. I was wondering how it might be done generally by posting strings here though!