To me it appears qs is preferred for other people's posts, but maybe quote for text off a website.
i suspect it's supposed to be the other way around, because qs includes a way to cite, but most people (including myself) prefer qs for members here and quote for outside sources.
Science fails to recognize the single most potent element of human existence. Letting the reigns go to the unfolding is faith, faith, faith, faith. Science has failed our world. Science has failed our Mother Earth. -System of a Down, "Science"
He who makes a beast out of himself, gets rid of the pain of being a man. -Avenged Sevenfold, "Bat Country"