I've seen this at other forums, it's usually a sticky. People post their bios. You could have some sort of template. Might help with credibility when reading the users post. I read some posts on here and I know maybe a half dozen people and their background. Then again some people may not want to give too much info.
Just an example template.
Level: (HS, univ, Post-univ, masters)
wo xi huan cheng gan tiao.