> Be kind. Don't be snarky. Converse curiously; don't cross-examine. Edit out swipes.

https://news.ycombinator.com/newsguidelines.html

Reading other comments, I noticed that this was a legitimate question.

Are you saying that [You don't?] is cross-examining/swipe, but [How did you "notice"] isn't?

I wouldn't highly object to either but if I had to pick one I'd definitely clear the former.