Just wondering how this might be an attack vector for fucking with Bing... I can think of a couple of avenues; the most elegant would be if the URL itself triggered something within the scanner/URL processor; next up would be the content of the target page attacking the Bing infrastructure. I'd guess the backend processing is sandboxed, but it seems like an interesting avenue that a malicious actor might explore.
Don't try this at home, kids. :)