I wouldn’t put it past some people to drive the bid up and never pay it.
That would badly affect their feedback score...and positive feedback is like crack to sellers and buyers on Ebay. Of course, I have 100% positive feedback on the site...as both seller and buyer. lol
Secondly, it looks like this IS Zimmerman because he's posted a photo of him posing with his artwork and it does not appear to be Photoshopped.