Senior member, crobb305, at WebmasterWorld reports that a banned site in Yahoo! has top rankings for a popular search query. He explains the site is 100% banned in Yahoo!, it does not come up for any other queries, no internal pages of the site are indexed, and it does not come up for a unique names. But yet, the home page comes up for a very popular search query at Yahoo!
Does this mean that Yahoo! can ban a site and still rank it well for select keywords?
You can say this is somewhat similar to Google Showing Q&A Results but Same Site Not Indexed but in that case, it is clearly a different portion and feature of Google. Hand coded results in Yahoo!'s organic listings is not.
Forum discussion at WebmasterWorld.