I noticed another interesting thing here. I found that some of my articles with comments are not doing well after Panda. Some articles with out the comments or few comments gained the rank. I also saw that some of my comments are not filtered for bad words, so I applied bad words filter yesterday.
I know that Disquss shows ajaxed comments, I don't think Search Engines can read those comments unless you submit a sitemap. We get a minimum of 10 comments a day. In general, is it a good idea to show Ajaxed comments instead of on page search engine friendly comments?