There isn't much difference between the USA and Australia in the way
we handle lawsuits for libel, but if you accept the idea that the person
most likely to be offended by your speech should have legal
jurisdiction, then you would have no more freedom of speech than
what is allowed by the most restrictive nation on Earth,
regardless of where you reside

...Unless your own government insists on defending the rights of its
citizens by rebuffing such foreign claims of jurisdiction,
even from normally reasonable and friendly nations