The risks of information sharing?

My daughter sent me the following note: There's some discussion on the cycling list I'm on about whether bike thieves are looking at Strava, a site that lets people compare routes they've ridden, to target nice bikes. Apparently, people's profiles show the bikes they've ridden on which rides, and given the ride data, you can make a pretty good guess about where their bikes are stored... There's no hard evidence that this is the thieves' MO, but a lot of people are speculating and wondering. Steve Bellovin, https://www.cs.columbia.edu/~smb ------------------------------