Superbluetoothhack isn't a hack. It's a hack for kids. The moment you want to authenticate with another phone they need to be paired up. So the phone needs to give authorisation for full permission.

The only way this works is if you know the person and just want to prank them, sending him a file and don't break the pairing connection afterwards.
A real hack is the person not knowing what you are doing in his phone. This is not a hack...