tl;dr It is probably common Wifi in a specific setting. Cmon, HNers. You're better than this. This obsesssion with "listening" to what you say is so twentieth

tl;dr It is probably common Wifi in a specific setting. Cmon, HNers. You're better than this. This obsesssion with "listening" to what you say is so twentieth century. Metadata beats data anytime. with the surround of information that comes from auth, apps, and FB usage, there's no problem associating people that meet each other, then immediately check FB.