I agree that the chat on twitchtv does help with modeling @Tom @Ponder and @sdee can get direct feed back from the target audience and that really helps. Or atleast it seems to have helped. (please correct me if i am wrong)
As for the questions where ever they come from there should be 1 source for the questions and answers and then stored in @Geoffers747 Q&A or as i refer to it as the FAQ sheet.
Having a 1 stop shop for the questions and answers will only allow us as a community to progress faster and with more questions that relate to the topics at hand.