Hmm. Baidu is a China-owned SE, and as far as I know, it is a privately held SE that the Chinese government controls - meaning all sites that shows in the database are controlled and filtered to only those that they allow.
Probably the problem would be, Baidu can make use of contents like on our forum and probably scrape it out and use it as their own unique. Am not actually sure though. Any one who knows a better idea of it?