How is it useful? I'd be interested to hear your explanation. If you mean, however, that it's useful in helping us identify someone as socially acceptable or not, your point is lost on me.
Meh, definitely not my type. One of the few girls in this thread I wouldn't take to the boneyard. To each their own, i just think she looks like a guy too much in all the pics I've seen.
It is useful for knowing, in an accurate way, our thoughts, views, likes, dislikes and ethic and aesthetic attitudes. For instance, Nastassja Kinski in Tess is (extremely) beautiful. Nastassja Kinski in Cat People is hot (as Hell). Same actress, two different views.
Maybe you don't see this distinction, but I bet all the male (and perhaps female too) merabers here who have watched both films, perfectly know what I'm talking about.