Question: How do I transit through Australia without a visa?

Answer passage (source: Australia):
page_title: Coming to Australia
section_headers: I am an Australian citizen or permanent resident
section_content: All travellers arriving in Australia must undertake a mandatory 14-day
quarantine at designated facilities (for example, a hotel), in their port of
arrival.
You can travel to Australia if you are an Australian citizen, a permanent
resident, an immediate family member of an Australian citizen or permanent
resident or are a New Zealand citizen usually resident in Australia. If you
are an immediate family member holding a temporary visa you will need to
provide us with evidence of your relationship.
Australian citizen
Australian citizens can enter Australia and, in exceptional circumstances,
will be permitted to enter without a valid Australian passport. If you don’t
have a valid passport, please advise airline staff that you are an Australian
citizen and do not require a visa to enter Australia (even if you are a dual
national). The airline will contact the Australian Border Force to verify your
citizenship. It is important you get to the airport early in case of any
delays. Departure from the country you are in is subject to the rules and
decisions of authorities in that country.​
Permanent resident
A permanent resident is someone who holds a permanent visa in Australia,
including a Resident Return visa. Permanent residents must also undertake a
mandatory 14-day quarantine in designated facilities (for example, a hotel) in
their port of arrival once they enter Australia.
New Zealand citizens usually resident in Australia
New Zealand citizens who normally reside in Australia (with a subclass 444
visa or other permanent or provisional visa) can come to Australia. You must
carry proof of residency (driver's licence or documents that show your
residency). Present it at check-in. You must undertake a mandatory 14-day
quarantine at designated facilities (for example, a hotel), in your port of
arrival.​
Important: New Zealand citizens and permanent residents not living in
Australia can only transit through Australia to return to New Zealand. Refer
to Transiting Australia.

Reviewer feedback on this answer:
Doesn't address the specific case of someone trying to travel without a visa.
It does not address the question of no visa.

Reviewer ratings:
Bad
Bad

Answer passage (source: Australia):
page_title: Transiting Australia
section_headers: Transit quarantine arrangements
section_content: If you cannot remain in the airport before your connecting flight departs, you
will need a valid visa, or be eligible to TWOV, and you must follow the
quarantine and isolation requirements in the state or territory that you have
arrived in. You must do this, even if you have an exemption from the ABF
Commissioner.
State and territory authorities will consider exemptions to the mandatory 14
day quarantine
period on a case by
case basis. To find out more about how quarantine works in your state or
territory, or to ask about someone you know who has been quarantined, contact
your state or territory government health
department.

Reviewer feedback on this answer:
It clearly states you can remain in the airport.
Says that people without visas should stay in the airport. Mentions being eligible to TWOV, but doesn't describe how to qualify.

Reviewer ratings:
Could be Improved
Acceptable

Answer passage (source: Australia):
page_title: Transiting Australia
section_headers: Transit visa requirements
section_content: To transit through Australia, you must either hold a valid visa or be from an
eligible country to Transit Without a Visa
(TWOV).
If you don’t have a visa or are not eligible to TWOV that allows you lawful
entry into Australia, you can apply for a Transit visa (subclass
771) which allows you to transit through Australia for up to
72 hours while you wait for your onwards flight. This visa doesn’t allow you
to stay in Australia longer. If you need to stay longer, you should apply for
a different visa.
Eligible New Zealand citizens can transit through Australia on a Special
Category visa (Subclass 444).

Reviewer feedback on this answer:
It directly answers the question and gives links to resources.
Says that people from eligible countries can travel without a visa and links to detailed guidance on who qualifies.

Reviewer ratings:
Excellent
Excellent