I don't know much about cash back sites and how they are funded, but I'm assuming that they have commercial arrangements with various merchants in order to generate revenue.
What I've noticed is that cash back representatives sometimes appear to receive information about deals before the general public and then post them on OzBargain (e.g. eBay percentage off codes). Presumably this advance notice has something to do with the commercial arrangement that these sites have with eBay and the fact that it's mutually beneficial for both parties (eBay for extra revenue from sales and publicity on OzBargain and cash back for assisting in generating that extra revenue and therefore validating the commercial agreement).
That being said, not everyone is going to avail themselves of the benefits these cash back sites offer but they may choose to buy something based on a cash back representative's posting of an eBay deal. In that circumstance, the cash back site gets no benefit so there's no conflict of interest. However, if someone does use cash back and purchases through eBay as a result of the representative's post then that sale is producing more than just a bargain for the individual and commission for eBay.
Given how other similar deals are flagged when there's a possible relationship between the poster and the retailer, should there perhaps be a new tag that draws attention to the fact that a person is an representative of a cash back site and therefore may directly or indirectly benefit from posting that deal?
Clearly the store representative / associated / third party tags don't apply in this case but the fact they exist in the first place seems to suggest that OzBargain is interested in transparency and making users of the website aware of where potential vested interests lie in deal posts.
I am not suggesting that cash back sites are trying to be dodgy or get benefits without disclosing interests but I'm just interested to find out if others think that a bit more transparency about these arrangements would be a good thing?
Yes, they do.