<p>I think a lot of those questions that don't get any answers (or where the answers don't get any up-vote)  should simply be deleted and/or closed after a certain time. On many of these questions, the OP has not visited the site in several months and often has not answered calls for basic clarification expressed in the comments. I agree with the opinion expressed by many others that this makes the website look untidy. To make matters worst, some of them apparently tend to get undue search engine attention. I think we should give a mandate to the moderators to progressively remove them.</p>

<p>Then there is the separate issue of questions with up-voted answers that are not accepted by the OP after a long time. Here, in those cases where the OP has not visited the site for a long time i think we should delegate the authority to the moderators to 'accept' the most up-voted question as the final answer. </p>
