I leave it on because I don't care if the various systems I'm plugged into know where I am. On balance, I'd rather the infrastructure have less difficulty findi

I leave it on because I don't care if the various systems I'm plugged into know where I am. On balance, I'd rather the infrastructure have less difficulty finding me if I crash my car in a ditch than be anonymous when I'm off doing my nobody-cares-what-I-am-doing. ;)