but how can you report that if you haven't received it? I am not arguing with you rabbit, but surely to report a fake item you need to prove it, how any people are going to buy a fake to prove it? And I wouldn't recognise shill bidding if I fell over it

shill bidding and feedback manipulation in the case of those sellers I mentioned above is as plain as the nose on your face. Just have a look at one of the seller's feedback - take a mental note of who has left feedback. Then click on one of the ones who have left feedback, and have a look at their feedback. You'll notice that the SAME members have left feedback for both. Then check another ... the same members leaving feedback for each other and if you have the patience you can trace it down as I did to 90 odd members that have been leaving each other feedback for months. They tend to start an account - list for a few days, build up some feedback (fake) and then leave the account for while - sometimes days, sometimes weeks - then they come back and start selling again if they haven't got too many reds.