Unanswered Topic Archive?

Hi Michal! I frequent the unanswered topics on the forums trying to help anyone I can with a unanswered question. I noticed as the site grows so does the unanswered topics, was wondering if maybe unanswered topics should expire after so long and maybe go to a archive or something to help weed out something you can help with with something that is out dated. It’s not a big deal now but as the members grow and so do the questions.