I've just started trying Auctiva for listing items. Had a problem which their help didn't seem to address, so I googled it. Didn't find the answer to that query but did find the answer to the query I put in the subject!
I ended up with 100s of pages of details on how to set up Stealth accounts using such things as Auctiva, (and others but I can't remember their names - I'm not knocking Auctiva or any other ebay listing tools) to hide your IP address etc.
I found forums with such comments as "on my 5th account, but Ebay have just suspended me again"
There's a whole book on how to do it.
So now I know why Ebay favours the buyers - it's because of all the arseholes out there who spoil it for the rest of us. 
Rant over.