There was a discussion about this seller on AtariAge a while back, in the course of which it was pointed out that he was buying up 5.25" floppies on ebay. He promised, at that time, to mark all of his fake labels as reproductions, but he hasn't done so. Unfortunately, those threads were deleted.
He sells a variety of games, often saying, in the item description, how difficult they are to copy - despite his claims that he has boxes full of originals.
He also gets angry very easily...
