It's news to me that Aussies are terrible tourists
. You guys are pretty easy-going in general when visiting. Mind you, NZ doesn't have many problems with tourists in general. I think the locals are more likely to play up half the time.
Edit: Not a national thing but an age thing - It's the Uni age visitors that tend to kick up a ruckus if anything. Usually they just can't handle their booze and end up having to be carted back to wherever they're staying, haha.