The usefulness of the question is irrelevant. It would be useful to me if I could ask questions about whether I should see Ted or The Dark Knight Rises, but that's completely off-topic. The Stack Overflow FAQ has a clear outline for what types of questions are allowed:
What kind of questions can I ask here?
Stack Overflow is for professional and enthusiast programmers, people who write code because they love it. We feel the best Stack Overflow questions have a bit of source code in them, but if your question generally covers …
- a specific programming problem
- a software algorithm
- software tools commonly used by programmers
- practical, answerable problems that are unique to the programming profession
… then you’re in the right place to ask your question!
Pronunciation questions don't satisfy any of these requirements. There are numerous other websites, which serve different purposes, whose communities would gladly answer your pronunciation questions. You can post them there.