@Kevin First-aid refers to assessment as well as treatment. Part of assessment is knowing whether something requires higher help (which takes training)
Its first-aid not total aid, or definitive aid. Ie, assessing, stabilizing, treating, and deciding whether to evac or not.
the site's definitely not as buzzing as it was when it first came into beta, but at the same time it's definitely not dead - there's a steady stream of questions / answers and a good community
Opinion time: "Is there evidence for or against fish feeling pain from a hook?" - migrate/re-ask here or not? (It's on sports and about to get closed as off-topic).