This comment feels pretty derogatory to me. We know that, and if you had bothered to read the thread before coming in and making assumptions you’d have seen that. You’re missing the point. An enormous amount of information can be inferred by knowing your activity and fitness levels. This guy is on his feet 14 hours a day? Here’s a coupon for some shoe inserts. This guy spent 5 minutes pacing back and forth down the candy isle and didn’t buy anything? We need to give him a nudge to make that purchase. This person does yoga every morning and only buys organic produce? Well, they probably don’t shop at Jewel honestly but hey did you know we carry aluminum free deodorant in the health department? Your motion and fitness data can absolutely be used to infer a general level of healthiness, which is often times (and often incorrectly) also summarized as your BMI.

It was also wisely mentioned elsewhere in the thread that targeting advertising is only the tip of the iceberg as far as what can be done with the profiles these companies build about us. But none of that exactly fits very well into a title for a post.