If those terms were on an auction I were interested in,
I'd report it to Safe Harbor. I imagine eBay frowns on
people adding their own arbitrary auction rules.
And since these terms aren't displayed on the (or even
mentioned--there's no requirement that a potential
bidder follow the "me" link in case there are onerous
terms there to examine) auction page, if I bid and
won in the last two minutes, I would file a non-
performing seller report and leave a politely
worded but clear negative feedback.
Fortunately, Microdata isn't one of my interests.