Generally, the people who say that have never been menaced by a lady with a pistol. [ Which probably still doesn't mean a lot to 9S, so... ] Which is to say they think they're weak.

[ Therefore, full of weak emotions, etc. Anyway, he's still trying to watch the video, but 9S asks yet another question. ]

Hm? Oh, I don't know. Bravery, piousness, and how many skirts they can joke about lifting at the end of the week. Something like that.