I am as much a datavore as the next internet-inhabiting member of my socio-economic-educational cohort. Right now, with a few clicks, I can bring up a history of my workouts, personal mass, and grams of macronutrients eaten, going back months or years (depending on the quality of data desired), as well as how long I've worn each pair of contacts I've ever used, and the length of every menstrual cycle. No, this data is neither open nor freely available (at least until I get a good publication out of it).
I have thought about getting a fitbit, but it seems extraneous. At my current level, increasing my steps per day is a tiny factor of my overall activity. Plus I'm not crazy about uploading my data to some company's website, automatically. I want to control the data I generate, and I think this is reasonable.
But this article makes me want to run from the fitbit, for many steps. In fact, I think that I could probably be discouraged from most of my present activities by an article describing them in this light: as an obsessive, addictive, cult-ish fad, in which basic humanity (competition, socializing, merely walking) is suborned in order to commodify community and "brand engagement."
This post's theme word is thrasonical, "bragging or boastful." Linked fitbit accounts are thrasonical interpersonal spam of an unpleasant sort.