I still do not see the point: you always have to wait for an answer, regardless if you have a "shout box" or you haven't.
You could test this forum in respect to response times and state your problem.
Edit:
OK, I saw your post in
no lyrics on first mp3
The answer is there since the 15th of November, 21 minutes after you intially posted it.
Today is the 21st of November and you have not answered to any of the posts.
In this light I would say: no we don't need a shout box, not even for your case.