DGCollectables
https://www.dgcollectables.com.au/
it is not the whole "hiding" your feedback that worries people i think it is more the fact that buyers cannot see who there competition is, and who they are actually bidding against.
i actually have more people that buy off me outside of ebay now, due to built up trust. ebay is more of an advertisement for some of the stock i have and i guess this would go in the "why does feedback matter basket" as nobody gets feedback when we deal outside of ebay it is just a trust issue unless you are buying off me through oztraders which is becoming more frequent as buyers get the boxes cheaper as i don't have to pay ebay fees or oztraders fee's (don't get any idea's mods )
You know i didn't even know people (the buyers) thought this until recently. Its only through people telling you that you can adjust to the marketplace. And selling on ozcards or in person is better anyhow. More trust, more personal, and less fees to feebay.