Sorry, what's gone over your head? Shill bidding? Shill bidding is where a seller has multiple accounts which they use to bid on their own items to increase the price.

There was a seller who was caught out a couple of months ago and it was talked about at great length on this forum. The seller was reported and all her accounts except for one were shut down by eBay, after some excellent detective work by forum members working out the identity of her fake accounts. We didn't know about that other account at the time. She started trading again on her remaining account, which it seems lately, she is up to her old tricks again. 

This account only had feedback left for others from for her main and secondry selling account which were closed down. When I checked the main account last night, I noticed that the formally shut down account is now active again and she is selling on it again. Interestingly, the same 0 or low feedback buyers are bidding on her items on that account too.

The issue is, she has been reported multiple times for this offence by numerous forum members, which isn't just an eBay offence, she is actually committing fraud, and no amount of reporting is seeing her shut down. Hence our reasoning that she is one of eBay protected ones, who can commit as many offences and breaches of policy as they like, and there are no repurcussions.