Creampuff. Are you suggesting a system where VFR and IFR aircraft using "radio arranged separation " in the Australian way on frequencies which are also used by ATC to separate aircraft is " the least impractical solution".
I didn't suggest that. I positively asserted it.
That clearly means the ATC does not have control of the frequency.
Oh no! It's going to rain aluminium!
And you don't seem to have a problem with this . Does it concern you that no other country allows aircraft to aircraft communications on ATC control frequencies unless approval has been obtained from the ATC?
There are
lots of things that concern me about the third world joke that Australian aviation regulation and infrastructure has become. An occasional broadcast on the Centre frequency isn't high on my list, though.
I don't make the rules, Dick. I just try to work out what they are - this week - and comply with them.