If ebay is not showing you the seller, have you checked the 'item location' on the left hand side of your search page?

You can have listings that are as close as 25 kms from your postcode - or you can change it to what suits you.

I'm curious though, as to how ebay/Khoros knows that you are an indigenous Australian.

No-one here knows nor cares about posters race, colour, creed or infirmity. Some cry that they are pensioners/invalids to gain sympathy.

It's called 'playing the card'

These boards are serviced by volunteers who are mostly all of the above, so bringing it to our attention just doesn't wash.  

It doesn't get 'special' attention.