There was a day,long,long ago,when ATC were Aviators,or,at the very least,had done observation sectors during training,so they had some idea how an aircraft operates.Major Airlines had regular consultation with AirServices to review performance,on both sides,with a view to improving the system.All that went out the window when the Howard Government went to full cost recovery at AirServices and sold off Melbourne Airport.The result decades later?The debacle we all live with today.The system today is C+ at best and sometimes way less than that.Whoever is to blame, let me ask ATC viewers this; do you want your family on an RPT flight out of say ,Canberra, carrying Company flight planned fuel that assumes NOTAMed holding (usually 10 minutes), on a gin-clear CAVOK day,that gets airborne and is immediately given a Hazard Alert of 45 minutes holding.Reason? Greater than 5 knots tail wind on Rwy 27.If anybody cant see the sheer stupdity of that then I'm on a different planet.And there is plenty more where that came from.The system is broken.Everybody on the rest of the planet knows it.