> Bad actors at this layer seem to be quite rare.

I think our experience is rather limited for the moment to tell (ok, barring refilled cartridges ;-), since bad acting is inhibited by existing mechanisms. (Even with cartridges -- what if your new yellow ink breaks that hidden watermarking that certain people have come to rely on?)

Compliant device receives an accepted designator (certificate), non-compliant device is not expected to have it. This model can easily be broken, unless it is being taken care of somehow in the new model.

Unlicensed bands are a tiny part of the entire aired RF spectrum -- and we didn't even start speaking of devices sharing a wired RF medium.