pacificgypsy
"If you are non-resident for tax purposes, why would you want to put money into a superannuation account that will have its income taxed at 15%?"
I may be wrong, but my understanding is that only pre-tax salary sacrifice contributions made through an employer are taxed at 15%, and that other monies that are voluntarily contributed are not taxed.
Because these monies then earn interest tax-free, perhaps contributions to a super fund might not be such a bad idea, particularly for someone who wants to diversify their portfolio.