Hissingsid - 3:56 pm on Oct 5, 2011 (gmt 0)
Bing does is that way, but Panda is a sitewide penalty when certain criteria is reached, so the entire site suffers. I know it first hand. Maybe if sections are divided clearly, it's different. maybe.
Could that be why Matt Cutts suggested sub domains as a solution.
Could this be in part about the site as a semantic web?
If this is correct Panda may be half the site as a semantic web and comparing user experience data between similar (semantically) sites.