I'd hope that people would post example flows (of different screens) or interaction details for an interface idea. They may be wireframes or sketches. They don'

I'd hope that people would post example flows (of different screens) or interaction details for an interface idea. They may be wireframes or sketches. They don't have to be polished mock-ups. The only way to get people to post these is of course to have examples that encourage readers to post more of the same. But getting to that point is of course difficult when starting a messageboard community :-)