I love not tipping, and for me personally, the service in Australia is perfectly fine. I took my (Canadian) partner to Australia (her first time there). For her, the service was nowhere even remotely close to that of Canada.
In Australia, someone might take your order (or you order yourself at the bar), then your food is brought (or you get it yourself, get your own cutlery), and that is all. Plenty enough for me, but that's utterly bare minimum of what you'd get in Canada. Almost below bare minimum.
In Australia nobody comes to ask how your meal is, nobody comes to top up your water, and nobody will pontificate with you for 10 minutes about the difference in hops between two beers on tap. When my partner asked for that kind of information, most people just shrugged and gave her a sample of both, then said "what do you want?". I found it hilarious.
So while I think the service in Australia is perfectly adequate and I personally like it, my Canadian partner found it lacking immensely from Canadian standards, but she did like the no-tipping.
Then I have been to a few restaurants lately that the card machine (often a US-based one like Square) asks for a tip as a mandatory thing (i.e. you have to say no or type 0 to get past it). And the waiter/waitress will stand behind you watching/waiting with the machine they bring to your table. This never happened before - and I do admit that I have started leaving $10-$20 or something if I was happy with the service when this has been forced on me (depending on the size of the bill and the mood I've been in).
I did this with a work drinks with a customer the other day and my Aussie boss called me out on it "what is this tip on here - we don't do this in Australia". And I was like "I was in front of a customer the machine asked me - did you want me to say zero and possibly look cheap/unkind?".
So it is somewhat creeping into things here. Curious the views of other Aussies on how they are dealing with it? Am I just slipping back into this because I am an American and was used to it being a thing?
The correlation between service quality and tipping is an interesting one, why does anyone do a good job in any role without some kind of incremental reward for effort. Do office workers always revert to 'just enough to not get fired' or are they playing a longer game for promotions and bonuses?