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In re-reading my earlier (before 2009) blog articles, I found many of comments on my blog articles missing. Sometimes only my replies remain which often will confuse readers if the original comments are missing. Sometimes all comments and my replies are missing. I know since there were there in the published version of the first two years my blog articles by Tsinghua University Press http://blog.sciencenet.cn/blog-1565-268646.html .

I have notified Sceince Net of this problem,. It is not clear this can be remedied. If you must, you can always consult the publish book mentioned above.