I expect that when someone asks a question, he/she must eventually either pick one of the presented answers or leave the question open.
What I see happening a lot is that, questions are left open for long time without an answer being chosen. If I contribute an answer to such questions, I never get to know whether my answer was read by the person who asked the question or not or even if they are still interested in more answers to be posted to that question.
It might require some software change but this is important in my opinion.
What do you think?