Some enterprising chap on eBay with the username jaybuysthings has worked out the identity of the artist Banksy. To clarify: he’s not got any Banksy artwork or anything like that, he’s just worked it out from tax records and now will give a piece of paper with Banksy’s real name on to the highest bidder. At time of writing, bidding has hit the £1m mark. Has everyone forgotten about the Daily Mail story outing Banksy as one Robin Gunningham?