What they didn’t mention is the other small forums that won’t require age verification:
stormfront (Neo Nazis)
KiwiFarms (facilitates stalking and harrassment)
But thanks for stopping kids getting on Facebook Australian government!
edit: try https://ausinds.com/image-boards/
No logins, no age verification
Non-amp link: https://www.9news.com.au/national/social-media-ban-full-list-of-sites-apps-exemptions-australia/fc75d5a7-2cc7-43a6-b7ee-074a47829ae5
(Yes deleting the UUID breaks the URL. Which means everything in the URL except that is probably useless)