It has recently been the opinion of Chassidic and other ultra-orthodox groups that the proper way for Jewish girls and women to dress is with skirts that reveal ones ankles (when covered with stockings). To me it is quite evident from the Cole Porter song "Anything Goes" that in the past it was unheard of to have dresses or skirts that exposed ones ankles.
"In olden days, a glimpse of stocking was looked on as something shocking. Now heaven knows, anything goes."
To me it can be presented in no clearer way that having that part of the body revealed is a thing of attraction, and is a new phenomenon, and therefore it should at least not be advertised as the "traditional" or "proper" way of going about things. The (most) proper way to dress in this situation is undoubtedly the way of many women whom the fear of G_d has touched their hearts dress; wearing clothing that covers their ankles. (Although as was previously mentioned, from a purely halakhic perspective it's ok to have ones lower legs revealed, even without stockings or any other form of socks).
(The link to the video is on the lyrics. The whole lyrics are here).