While the data itself is valuable and shows worrying trends, its collection makes me even more worried.

If this trend of us collecting datapoints for every muscle twitch continues, we will not be needing a "right to not incriminate oneself" any more, our devices will be the ultimate provers of our guilt. We sign off our freedom for... what? 10 bucks a month savings in car insurance and "you're a Captain Picard!" in a facebook "which Trek character are you" dumbass quiz?