To add to what CaptainMarvelous said:
We're always looking for new ideas. The Boards Bulletin is a good one, but I'd love to hear any idea, however crazy they may sound. We're limited in that any work requiring development of the boards is beyond our control and we can't rely on Riot to act at our behest (so nothing like in-client links or official posts or anything), but if anyone reading this has ideas for things they'd like to see, thoughts on why they don't visit C&C and what could change that, or just wants to share some thoughts, please do!
We're definitely watching, and definitely passionate about improving the C&C experience.