Thanks to all. I agree - I would like to warn other sellers. BUT -- I don't see how it really IS a warning, because we can't block a bidder based on feedback. I block bidders who have rec'd a non-paying ding, but I don't think there's a link to the f/b system as such.
(Either way, I think she deserves negative feedback because she has broken the trust that is built in to the eBay system - a trust that she agreed to abide by.)
2purrcats