@FT
He has a point about the 'thick' Aussie accent - it is quite horrible. However, it is mostly spoken by Aboriginal people, most of whom are unlikely to be teaching English anytime soon.

As for the softer Aussie 'twang' and the notorious rising tone at the end of a sentence, perfectly OK IMHO.

I did, however, miss his following sentence prior to my response to him...............

At least a proper well-educated (white)
South African is able to speak something more akin to the Queen's English that your
average Aussie with all of his or her's totally mutated vowels and jingoistic
vocabulary.
..................and that is just laughable !

He is entitled to his opinion, and he has given us it. I agree with your opinion, not his. What I will also say is that there is an Aussie who will throw a hissy fit if he reads what that other poster has said. He is well aware of that and is a wind-up merchant.