I was invited once to Yahoo last year and I saw some things that I would not blog on. I can say that I did see this screen at Yahoo! and a bit past it. It is not a big deal, of course they want these types of quality controls at Yahoo!
An SEO Chat thread named Yahoo employees are manipulating the search results shows a screen capture of a yahoo SERPs page as if you were inside the Yahoo! office.
I believe it is legit, but I can, of course, be wrong. Forum discussion at SEO Chat Forums.
