OK, I've got a Strava question for all you smart people. I recently had someone give me kudos and comment on a ride I had posted on Strava. I don't follow him. He doesn't follow me. There were others on the same ride who do follow him, though. I really don't want him knowing when and where I ride. How is it he was able to see my ride and comment on it? Is his affiliation with the other people I rode with his back-door into my account? Is my only option to mark all my rides "private"? If so, then I'm the only one who sees them, right?