one would need to be on the electoral role to get a fine for not voting, I would doubt the were, I also would say "they would not class themselves as Australian"
Not been on the electoral role will attract a $20 fine for not voting, they track you via the tax file No and address. I've had first-hand experience on that one. Doubt the desert and other fringe dwellers would meet the TFN criteria?
If you are asked why you did not vote just quote the bible: Romans 13:2
Romans 13:2
I want to know where I can read the legislation in its entirety.