It's an interesting app, and a really cool idea. However, should you be displaying the location of your users on a Google Map via your publicly accessible back

It's an interesting app, and a really cool idea. However, should you be displaying the location of your users on a Google Map via your publicly accessible backend website? I'm happy for location to be sent to the server for working out where I am. I'm less happy for it to popup where everyone can access it.