Well, unfortunately, yes objectively lots of blind people. The problem with weight estimation is it's notoriously inaccurate. Also, because we can't check actual numbers, weight as a euphemism for fat becomes a highly subjective measure for body good looks; that is, thin (lower fat) = more attractive. "A woman can never be too rich or too thin.". And looks are highly subjective depending on the sexual experience.
Which brings me back to the example of Yuffie who I judge from stomach fat folds is 25lbs over fat, one of the most visibly fattest providers I've seen, but check all her reviews physical descriptiond which most clearly euphemise if even mention - full woman, thick bit of belly not fat, pudgy, etc. LSC Hera is thick, bit of belly also, but not anyway like Yuffie.