Yes. I do think it is an important feature. In order to make the forum live, to make more users online for a long time, I think we need to add some interesting features. The most important phenomenon is that most of the users just log-in the forum when they want to ask something, then they leave. A interesting feature should handle this problem. For example, if I want the users can pay the others using their reputation to answer his thread, how can this be done?