∞ Glassboard: Location vs. privacy

As a result, we’ve put a location switch on the compose screen for each message or comment, so the user will have full control in its use, message by message. And when you add your location, its not only private to that board, but its specific to that moment in time. Glassboard does not track your position over time, and no one else will have access to this information.

I definitely think Sepia Labs is taking the right approach here.