I don't imagine this is a big deal for the majority of users, but I came across it while cloning my setup to a friends machine.
I consider myself honest when it comes to purchasing software and licenses to use them, and do my best to abide by the copyright holders terms for licensed materials.
As a result of cloning the subsonic setup, the license key which I had purchased was cloned to their server as well.
There is no easy way to change the Key through the GUI. I would like to suggest that it be implemented a way to Update and or Remove a license key, so that if I were to clone another setup, I could remove my key from it so that I don't let others use my key after cloning it.