I read an account a few years ago of somebody using this "feature" during a military training exercise to find the "enemy" camps and call in simulated "artillery" strikes. The people on the receiving end got hopping mad and couldn't figure out how he kept finding them so quickly.
Hi. I work for Fitbit, but don't speak for Fitbit.
I am, however, curious about how people on HN talk about Fitbit, so I subscribe to HNWatcher alerts. Unfortunately, I only got an alert about this comment a week later.
If I did officially speak for Fitbit, this reply would be more diplomatic.
Personally, I'm losing patience with this lie being casually repeated so many times.
If you would even bother to read the article you yourself linked to, you'd see that it was Strava that revealed this information, not Fitbit. Fitbit's role in the story was to display the "Are you sure?" message when soldiers explicitly chose to share their Fitbit data with Strava.
There is no excuse for saying Fitbit did the revealing. If you were serious about privacy and security, you'd be careful about accusing the right party.