No it's not. That's absurd. A clicked search result is a successful product. Bing is taking note of a competitors successful product and using that information in it's own decisions on the products (serps) it produces for it's users.
This is a bunch of microsoft haters making hay over nothing at all. Quit whining. It's not theft, it's not any more privacy-offensive than anything Google does, get over it.
I agree with you 100% if that's the case, ( and matt Cutts ' comment suggests it is) . My argument were for the case if Bing were to crawl google results page, (programming equivalent of Searching on google and feeding results on own db as results for the term ), not considering user clicked information.
This is a bunch of microsoft haters making hay over nothing at all. Quit whining. It's not theft, it's not any more privacy-offensive than anything Google does, get over it.