On Tue, 30 May 2006, Andrew Lih wrote:
I think it is worth it to send them a letter to the effect that the GFDL requires such-and-such and that WMF would be happy to supply them a translation of the policy and provide help to implement the measures. Remind them first, rather than charge in with legal notices. And in the process, point out their own "Business Code of Conduct and Ethics" listed here which has a statement about respecting copyright: http://ir.baidu.com/phoenix.zhtml?c=188488&p=irol-govhighlights
This seems easy to do, and shows that some effort has been made to protect the copyright - an important step, I think.
Cheers, Andy!