Personal ad 

I don't want to advocate on behalf of Cao in any way, so on behalf of the article and Wikipedia let me say that I think the personal ad is not encyclopedic material. There is plenty of secondary material available on Cao so that we don't have to resort to original research to fill out the article. Furtherm this is a very poor source. A posting like this personal ad could have been placed by anyone from anywhere. In this article the link is clearly intended as an innuendo of Cao's (supposed) homosexuality. If that's the case then let's either say so in the article based on wikipedia:reliable sources or leave it out. 
As for this article and the KFA, they're not so bad. Perhaps some editors are too close to the topic. Instead of all this edit warring I suggest that we all relax, go edit articles on North Korean cuisine, small towns in Spain, minor fascist movements of Uruguay or other topics that we might be interested in, yet dispassionate about, and let this topic rest a bit. There's plenty of time to get the history right on this subject.  Cheers, -