[Ideas] Filter on unanswered questions in forums

Hi,

I would like to spot the unanswered questions/topics in the forums when I have the time to dig in deeper or just provide some feedback to get more info.
Since the community is growing by the day (seeing new members almost every day I think) and thus the number of posts the unanswered posts will get buried underneath the "active" ones.
So please give us some way to filter on the posts more effectively.