I would like to know it, too... is it a reason that baijianpang wrote it already 4 months ago and in the meanwhile changed something on the server? Maybe if you force your Firefox to display utf-8 before you submit a new post, and if you switch to utf-8 again when you read the post then you can read the chinese... but in fact I do not really understand it yet.
I build a new page and kept in mind to convert every language file of Joomla! and its extensions to utf-8. On my page it works with Chinese... But your page, dartagnan32, seems also be in utf-8 mode. So, I will register and make a try...
Btw.: you have got a beautiful and interesting page dartagnan32. If I click on \"Register\" in your forum, I get the message:
You are not authorised to view this resource.
You need to login.
If I click on \"Register\" in the header of your site, it works... the register-link in FB seems to append an Itemid which may be a little problem for the registration in Community Builder.