Thanks for that link. Interesting that the blogger who lost rankings wrote "News aggregator sites which picks my content gets listed with my content." JohnMu didn't respond to that part of it.
It's interesting that the site-wide factor for Panda can hit the content's original author as poor quality content, but that same content when aggregated on another site doesn't cause the aggregator a problem. Probably because the aggregator has such a variety of content on their site.