I think the confusion/general anger/dismissal occured from me also saying that growing arm biceps hardly relate to longevity, and for me resistance training is all about longevity and health, not simply looking good. There are muscles in your body that directly relate to health of cardiovascular system, longevity, health, etc., and then there are others that scientifically don’t really show signs of increased longevity or better health (directly), like arm biceps. They do, however, relate indirectly in a way that it still counts as an exercise, which is always good.