What makes one appear smarter and more sociable? 
Inter-rater reliability is super important for tests like this. http://en.wikipedia.org/wiki/Inter-rater_reliability The gist is: you can't simply mark one person as "asian" and assume that categorization is correct. 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.Second, there is a huge problem with causality here. So for instance, the author writes: "Be Asian if you want to appear smart; Latino if you want to appear extroverted." The problem is that there is a methodological flaw. On the first photo I saw on judge.me, I was presented with this image: http://images.judg.me/82e7fcbd988dbdcac0d00bd53fb93e96.jpg This would appear to me to be a latino or hispanic male at a party. I'm highly inclined to rate them highly on the extrovert scale: they're at a party. But that doesn't indicate stereotypically latino or hispanic features indicate extroversion. It could be that people with stereotypically latino or hispanic features were more likely to upload photos in which the image portrayed a more stereotypically extroverted activity.Third, it appears that users can upload a photo to the site and see their feedback from votes. It seems highly possible that users self-select a photo that will best affirm the image of themselves they wish to cultivate. In that respect, there's both a huge confirmation bias and huge self-selection bias. If I want to think of myself as an academic, I'll upload a picture of me at my desk studying and watch the "intellectual" ratings pour in. Then I can feel assured that other people perceive me the way I want to be perceived. Additionally, if one wants to conform to social expectations (and things like Asch's line test http://en.wikipedia.org/wiki/Asch_conformity_experiments indicate conformity is common), this data might really be nothing more than showing the degree to which people post photos affirming their conformity to their social expectations (i.e. 'smart' ethnicities posting 'smart-looking' photos) and be saying nothing at all about how people actually perceive ethic cues.There are huge methodological concerns for this 'study'. Instead, the revelation of this data might actually be the insight that "pictures of yourself at social events makes you look more social." Taking much of anything at all away from this data set would be rather unwise.