Your comment made me go back to articles on data sharing 23andme does with companies. At first I read your statement about cilantro but it seems these are just the type of questions companies are paying big money for.

>For now, though, 23andMe’s biobank is the world’s largest repository of DNA samples that also contains extensive health information, willingly provided by customers who answer survey questions like “Do you like cilantro?” and “Have you ever had cancer?” 23andMe says its customers supply it with as many as two million new facts each week.

There’s only one problem—depending on your own ethics—and that is your data is helping pharmaceutical companies develop new drugs.

The continuation from the above quote:

>These surveys are proving valuable to drug investigators. This year the company found genetic variations strongly linked to whether customers consider themselves early risers, offering a clue about how to develop drugs that modulate alertness. [1]

[1] https://www.technologyreview.com/s/601506/23andme-sells-data...