Old topics show up in Help other tab

This is a follow up to @DannyPancratz’ question 

And to this idea:

Over the last years we’ve been keeping up with a very good moderation routine and we aim to get all questions and best answer.

This has caused our Help Other tab to look like this:
 

Our Help others tab shows the most recent questions but also old questions that are not already closed. 

We do archiving in our community but it’d help us to be able to exclude some topics from Help us tab based on their age 🙂