Therefore, Dick, on your own logic there's no safety issue.
It must be extraordinarily comfortable living in your head. Some rule will cause mayhem, so everyone needs to be alerted to the impending disaster. But no one's going to comply, so in fact there's no problem.
All those people operating at unmarked strips around Marulen and Bowral could have clogged up the area frequency, but they won't because they won't be complying.
Phew! Now we can all get some sleep!