I share that feeling, but I also have to restrain it in the face of the fact that Stack Overflow doesn't seem like it's about discussion, or at least not open-ended discussion. It's about getting expert answers to focused questions, not polling for data or asking opinions.

However, I really wish someone would build and maintain a "Stack Overflow" for open-ended discussion. It'd basically be a classic forum (in terms of content) but with a different layout.