They never claimed causality. And they also state at the end of the article that they do not have a representative sample of the population. But if you do use

They never claimed causality. And they also state at the end of the article that they do not have a representative sample of the population. But if you do use the website and surf through some profiles, it becomes pretty clear that the majority of the users are, as the article states, younger, more educated, and more progressive than the average American. I would go even further and say that the vast majority of the users would not self-identify themselves as racist. Now question for OKCupid would be, wouldn't it be interesting if you could make a table showing the relationship of race to socioeconomic status, and then the breakdown of reply rate by socioeconomic status?