I have just introduced a new feature to the forums: Set Answers.
Basically the OP, Trusted users, users with more than 200 posts and Moderators can set (or reset) a reply as the answer for a topic.
Once an answer is set a new option will show up that allows users to filter the topic and show only the answer:
This can probably help other users a lot, in special on those long discussions that go off topic...
We are giving Trusted users a bit more of control of the forum by allowing them to set a reply as the answer - use it wisely folks, let's make the forums even better for everyone!