I agree with redwing, there's no effective way to separate "questions" from "discussions".
Lets look at some stat here:
the current general board have 95% Q&A, and gets less than 5 reply to solve their issues. It is not fit for general discussion but more of Q&A.
On the other hand it creates issues for discussion threads. If a discussion thread is not active for 3-4 day it gets buried under all these questions. And i highly doubt anyone even bother to find them by searching and reopen the discussion.
To overcome this issue general thread will not be used for short Q&A but rather polls, discussion, concepts, idea/suggestions, meta.
Questions will be used for short Q&A, medium sized Q&A for existing and beta musicbee only.