Set up some other dynamic sites (not indexed or linked anywhere) with random nonsense words in their URL strings, and a single link to some unrelated site. Clic

Set up some other dynamic sites (not indexed or linked anywhere) with random nonsense words in their URL strings, and a single link to some unrelated site. Click the link. Repeat, wait two weeks. Same as what google did, just not on google.com. Of course, if Bing has other "relevance" indicators (ala BingPageRank) then this might not work because it will rule the nonsense control site irrelevant linkspam, and not put it in (even Google's experiment only got a 9% success rate.) It would be better if someone like Facebook injected the test nonsense strings in their URLs. Something of this sort would at least show they tried to differentiate between "scrapes all clickstream data" and "uses Google's search results".