One last time for the slow one/s.
If you do not have an assessable income and NEVER will, you are NOT required to register for a TIN, if you do not have an assessable income and NEVER will, you are not required to lodge a tax return.
I never mentioned registration for a TIN, nor income here, I was referring to your apparent misunderstanding of residency for tax purposes, not your individual tax liability, read it slowly.