Encourage users to select 'Accepted Answer' for old Questions
I find it very frustrating that some answers to questions don't get accepted by the question poster, isn't there some way to manually accept answers, probably by moderators or by flagging them?
I do realize that most people don't accept answers because they don't see the concept of SO yet and are new to the whole thing. So they got their answer and never visit the site again until they have the next problem.
Yet, for people that answer questions and the questioner even comments an answer with "thanks, that helped me solve the problem", but STILL don't accept the answer as correct, it's really frustrating.
Is there any way to mark these obvious "not-accepted-but-still-correct" answers as accepted?
I'm not talking utterly unselfish here, because I am now at the point where I just don't bother answering new user's questions, because I know they won't accept the answer anyway, so where's my motivation? Apart from the good will of helping other people, that is...