text: I too am very interested in where this tipping point lies. But I’m guessing that publicity about Quantified Selfers like Wolfram will merely serve to utterly turn off the average person (who might actually benefit from tracking health-related behaviours).
  There’s a big difference between using your pedometer to help motivate you to track those 10,000 daily steps, or tracking your day’s food intake a la Weight Watchers – and obsessively tracking things like individual keystrokes on one’s computer. That kind of behaviour is so profoundly nerdy that it may just serve to alienate those who are sorta kinda thinking about tracking.
  I have tracked data from time to time when a problem occurs that my health care providers and I can’t solve.
  For example I tracked by blood pressure and meds dosage for about 6 months last year to figure out what was causing the blood pressure to spike.
  (Although one doctor wouldn’t look at it, but that is another story!) My PCP now includes my charts in with the official one.
  I do belong to Patients like Me and record evaluations of drugs with other members. That information is really helpful.
  Finally, I do weight myself daily. I struggled with my weight for many years but have been at goal for about 22 years. The daily check helps keep it in check. But I will not track that on any website no matter how secure!
  May I ask, just out of curiosity, was the doctor who refused to look at your self-tracking data a specialist or your primary care physician at the time?