Originally Posted by jozdemir

Nope not at all, even when I go up to a counter I'm never asked for ID with any of Qantas, Virgin, Jetstar or Tiger. I've only ever had to provide ID in Australia on domestic charter flights and some smaller regional airlines. Along with International flights as well

EDIT: I do generally have either a mobile boarding pass or a printed boarding pass in my hand though. But with carry on luggage only, or even the Qantas self check you can go all the way to your destination and never have ID checked by a physical person.