Sorry, the blanket dismissal is not entirely correct. Companies like 23andme are indeed trying to repurpose their data to efficiently enroll participants in trials, as the parent post suggests. While it's not the focus of the GSK partnership as publicly reported, it is absolutely part of the strategy in this market, and arguably more likely to succeed in the long run. As far as target discovery: yes, there are examples of success with GWAS data (though probably more with rare variants identified in sequencing), but 23andme phenotypic data is rather craptastic vs traditional studies or biobanks. No doubt they'll find things, but you're overstating the power of their data. Source: work in drug discovery in academia; I've been pitched by companies like this and worked with a few.