... is difficult to understand (General)
He said the categories menu should be more visible to visitors and some features are needed, such as access level control for different threads, PM function, user credits, registration invitation, etc.
I really love your design, it reminds me those old salad days in campus. Actually online forum is the most important web application in China and there are many bulletin board solution providers. The market is dominated by one or two venture capital funded companies (trust me, they are cash cows in every aspect of business). Chinese people are comparatively uncommunicative in public life, perhaps that's why we are so active in BBS.