Apologies if this has already been suggested but I'm sure I am not the only one to be frustrated by the following scenario...
I have on numerous occasions spend time looking at other users problems on OTN and made the effort in suggesting solutions for these and guiding them through to a positive outcome.
Then, once they have the solution you simply get a message 'thanks, that's what I was looking for' or a positive acclaim and they don't use OTN again until another problem arises in the future. I have seen similar ideas of reminders to people to log on and close a thread but often people only use the forum when they need a question answering and once it is answered they don't go log onto it.
This leaves the thread unanswered and deserved points not assigned.
It also means that people looking for a similar problem in the future can't see that this question has been successfully answered.
I believe there should be a request closure option available for a user to request that his answer be marked as correct if the question originator has indicated that is is indeed solved?