Read, researched and took a break. The first impression of this being something quiet interesting and perhaps revealing obscure questions... faded into the impression that this is statistician hogwash.

    Q: All this data is from a dating site. What does that have to 
       do with my life?
    There are many situations that might not be explicitly romantic,
    but are nonetheless a lot like a first date. A job interview.
    Trying to rent an apartment. When you meet your freshman
    roommates. Anytime you’re trying to make an impression on a
    stranger. 

Be careful about turning this data from a dating site into another form of craniology. What biases people utilise for sexual and/or life-partner preferences cannot and should not be interchanged with biases exhibited in interviews or the examples given. I'm sure there is overlap but one thing his data shows is that the sway of sexual preference is volatile enough over short spans of time that a huge margin of error should be assumed for any other forms of generalisation. Your time would be better spent figuring out what hollywood star of what race popularity peaked to create a sway in volatility, than to take this data too seriously. Anyway, the guy has to sell books i guess.