VoR, you will find most people here do not have a hatred for Class E airspace in the correct areas. What people do have a problem with is the fact that huge areas of C airspace in very sensitive areas and in effect at very dangerous stages of RPT jets flights have been replaced with E. E airspace in it's place can work fine, but do you guys think it is acceptable to implement Class E airspace on the major inbound and outbound routes from the Major Capital City airports in Australia. The most difficult time to get visual with traffic, is when a jet is on descent, as it is very difficult to see below you when in a jet on descent. It is also one of the busiest phases of flight for the pilot. Surely this is not the time to make the pilot have to be looking out trying to spot conflicting unalerted VFR traffic. This is one of the big reasons NAS is a farce. Why wouldn't they design the CTA steps to allow the jets to remain in Class C airspace for these phases of their flights?
Also as Ferris said, you may not be aware but the Australian ATC system is designed with all 1200 VFR paints being of the "not concerned" variety and as such show up as a dull, very hard to distinguish light grey colour (unless thats changed since I left for sandier shores), and this in conjunction with the huge scale of Australian sectors in comparison to the US, makes it very difficult to pick up that you have VFR aircraft in your airspace, let alone decide if they are of concern.
I hope this clarifies a couple of the concerns that ATC's at least have with NAS, and the reason it may appear we are against Class E, full stop.