dstiles - 9:16 pm on Dec 5, 2013 (gmt 0)
I can see one explanation, valid from MS' viewpoint; although unlikely, I admit.
It is easy enough to put up one or more domains with links to other sites with large numbers of images and pages. An SE reads the site and tries to follow the links - unsuccessfully.
As I said, unlikely but it's still a possibility. Think of all the bad links reported by that arch-fiend G. :(