To me this sounds reasonable, at first glance, but I believe the poster was a bit disingenuous. After doing some research into the Australian Healthcare System I found that those who do not live in Australia cannot receive healthcare coverage.
Medicare Australia - :: Eligibility and enrolment::
Also, I found that the posters claims are true about almost free doctors and hospitals, but they must meet a deductible AND they must go to government doctors and hospitals. Personally, I would rather go to a private doctor or hospital who get paid more for their services than to be treated by a discount doctor or hospital.