Why? Why? Tell me why?

Frankly speaking, as an ordinary man, I must say that it's refreshing to see pics and people like this one.

However, as a professional, sometimes I don't know why we want people dessing like this in an exhibition.

http://www.flickr.com/photos/lukeluo/1320941285/

Well... perhaps it's my problem... of not catching up such social "norm"... :)