since I watched the forum for some time I noticed that the support workflow for help is oriented at the very new topics because of the default topic list order like LIFO (last in first out) or just a support-chat. So people need to bump their topics when there is no activity for some time otherwise they will never get an answer.
When I try to reorder the support topic list I get all the topics without answers but the second order with the activity has no order and there is no way to get this working with a second parameter in the url like
acending=true&firstorder=post&secondorder=activity or something like that.
A compromise could be a autoMoveBot that moves out solved topics to a solved-category and outdated support-topics with no activity for maybe 3 month to a outdated-support-category or something. - Multiple automatically sorted categories could help too like 3-month-noactivity-category - 6-month-noactivity-category - long-term-noactivity-category.
When answering to an outdated topic it should be moved automatically to the main-support category.