I like this! I have a lot of ideas (not saying they're good), so I'm pretty sure in the long run I'll have several posts in here. But as aloha pointed out, it's not because you have lots of posts that you know how to code from source! In my case, I know nothing (or almost) about coding. Just for example, I had a "D" in my beginner C++ course during my engineering degree... And I forgot the little I learned at that time.
Anyway, I'll probably ask for technical help often, and having a technical knowledge rating for each forum members my be good. I would suggest that everybody starts with the lowest technical level, and in order to get to a higher level, they need to do a short quiz and have all answers good. For lower levels it could only be multiple choice questions, and for higher levels it could be more technical development questions. I know it may take time and resources to put in place, but it could be nice anyway!
Just throwing ideas out there!