Ebay moved this thread from Seller Central:

http://community.ebay.co.uk/t5/Computing-Advice-Technology-Chat/Ebay-Auction-or-Phishing-Scam/m-p/36...

It seems to refer to the same issue as the BBC article, but if so, the incidence of redirects may be more than isolated cases.  The timing of these X-box listings was particularly malevolent, coming on a day when the outages and associated glitches caused repeated requests to log in.

I had thought that clicking through from the listing to the log-in page was harmless as along as you didn't actually attempt to log in - but the BBC article seems to be saying that just clicking on the listing can be harmful.  Is this true?  I didn't get any warning from Windows Defender when clicking on the listing.