I guess it depends on where you are but outside of major cities, aka the vast majority of the us, there’s nothing on most of the FM spectrum other than dead air. As long as harmonics are properly filtered the harm from low power FM transmission would be relatively limited in my view. The Internet makes the dissemination of proper broadcasting practice much easier. Opening up the spectrum for low power transmission would do a lot to get folks interested in radio in my view.
Although thinking about all the nuclear takes I am constantly bombarded with online maybe giving folks another medium for self expression isn’t the best idea lol
PaX