A couple of months back OTN upgraded the software version that runs the forums.
One nice addition that it added is the ability to mark question as answered and provide feedback on replies you got to your questions.
However from my experience it doesn't seem like a lot of people are using it - maybe because they don't about those features - so here is the basic thing you should try:
Once you get a reply to a question you asked you'll see two buttons that will allow you to mark the response as helpful or correct.
Doing this will reward points to the person who answered your question - which might give them a motivation to answer other questions in the future.
Then once you resolved your question you'll also be prompted to mark your question as answered. Again this is an important thing to do for the benefit of the other forum users. So please use this one as well.