module discussion

I've been messing around with the idea of a module I want to develop in order to get a new drupal site off the ground. I've been looking for ways to get the idea put out there in order to get comments and more importantly critiques, but haven't managed to get much of either. It was suggested to me to post to the Contrib Module Ideas group so I did: http://groups.drupal.org/node/10318.

So how do you guys generate discussion about your ideas around the drupal community? What am I missing?