I'm surprised that "stronger locks" is what folks resort to, instead of trying to address the underlying issue (be it through punishment or other means.) I live in a country (in Asia) where bikes are routinely left on the street and not stolen or burglarized, scooters are abound and also easily parked, and generally petty crimes are rare. Here I can also freely leave my phone on the table in a coffee shop and go about.
I sure as heck wouldn't do this back in SF, though -- the amount of petty crime the society is willing to put up with, is, again, surprising.