I am not a fan of Experts Exchange, I've called it one of the most annoying sites found in Google. Well, with the Panda update it is no longer found that often in Google.
In fact, Google's Matt Cutts insinuated that Experts Exchange was one of the most blocked sites in the Google Blocked Sites tool and web search feature.
In a Hacker News post on how much traffic the site lost due to Panda, Google's Matt Cutts replied:
One of the signals that we've said that we use in the Panda algorithm that launched in April is how many users blocked a particular site.
To me, a response like that in response to Experts Exchange losing their traffic due to Panda, means that the site was one of the most blocked sites by Google searchers. Of course, I can be wrong and looking too deeply into this.
Forum discussion at Hacker News.
