Has anyone seen a way to do something like WebQnA in Moodle?
http://curriculum.calstatela.edu/WebQnA/
This web-based Question/Answer/Comment software was developed by Bob Desharnais and Gary Novak. It allows students to enter their answers to homework questions (or other assignments) directly on a Web page which can then be viewed by all the students in a class.
Each question may be answered only once. Instructors can use their web browser to create their own Web QnA modules, upload questions from a text file, edit the content of a module, and post comments to student answers.