"In that respect, the data would reveal more about the person sorting the photos than it would reveal about the perceptions of those that are rating the photos."

The problem is none of this matters since we don't know anything about the people rating the photos. Not their sex, not their age, not their location nothing.

To wit:

"and nothing about users who judge the photos."

http://news.ycombinator.com/item?id=3921271