Communicating of a new idea can be difficult if one can use only words. Particularly if change of user interface is proposed, the best possible way to communicate the idea and to describe possible solutions is making a picture and embedding it into the idea rationale or into solution description.
I've noticed that ideatorrent.org seems to have the odd spam comment (a post containing links to hundreds of other sites). See http://ideatorrent.org/node/127#comment-59 for an example.
