There are some interesting posts over the past few days in the "Ebay's Worst Offerings" thread concerning Catawiki coin auctions that should be read by all that might consider bidding in those auctions.
Ah. Mr Thomas/Michael Millard/Hibbs...
Have a look here where Tony describes him as ‘An Alleged Miscreant of the 21st Century’ and I can think of at least another dozen places he's listed including Robert Matthew's site here.