Very interesting. I never really looked at it that way.
A Q&A, to me, is basically just an opportunity for the Author to answer some basic questions. A chance at an interesting dialogue. I'd agree though that its easy to go to far - it really excuses the reader/watcher from doing much self deliberation, or from having a conversation with his fellow observers.
[edit] Also, sorry Hiro, had to move this

. If you want to ask bakker about it specifically, (which would be hilarious, btw), frame it as a question and repost in the original subforum. However, that's not really intended to be a place for more general discussion, so I moved it here where its more likely to get feedback from other users.