I purchased the Jumbuck 6-Burner Hotplate BBQ the other day which was heavily discounted due to a damaged box.
https://www.bunnings.com.au/jumbuck-club-6-burner-hotplate-bqq-lcc27_p0348682
You get 42 five-star reviews and 28 one-star reviews. I think a lotta one-star reviewers are under the impression the 'black' surface is Teflon. It's not, it's 'paint' as I understand it. There are clear instructions on the hotplate and in the manual to 'burn' it off prior - or attempt to.
I tried 30 minutes with all six burners on low and the plate covered in oil. I made a lotta nice burnt oil smelling smoke - but no paint bubbled or came off.
Nevertheless - now safe to use?

The sixth burner, on the far left of the gas connection, likes to make a faint 'popping' noise around the area indicated.
Heating not affected.
Still safe to use?

Cheers and thanks.