Re: The Newsroom.
I think what the poster meant to say was that you don't have to register to vote so you can get out of the mandatory part of voting. While this might be true the Australian system is still commonly referred to as mandatory voting (it's worth noting that you can, of course, void your ballot then).
"Now and then we had a hope that if we lived and were good, God would permit us to be pirates." Mark Twain, Life on the Mississippi