- I suggest relying most on interlinking questions.
- After identifying an evergreen topic, maybe a "hub-question"could be created for it, with the goal of interlinking several organic questions that deal with its premises.
- Then high quality organic questions — that have accumulated a lot of useful information — could be identified, and and marked as "Elevated", or "Staff pick" questions. These could be the ones that could be linked in the hub-questions.
- In this case, aging would mean less of a challenge, because a question marked as Elevated would not attempt to guarantee up-to-dateness; it just testifies, that at one point in time, it was highly helpful.
- The parent hub-question could try to offer an insight on the relative values of Elevated questions linked within: by ordering, displaying (well curated) tags, question age, average answer age, and upvotes (both question upvotes + cumulative, inclusive answers).
- Hub-questions could organize the interlinked questions in chronological order, by default the newer being on the top. Or one could write a script that would update the ordering with the overall number of upvotes also taken in consideration.
- Possibly, if the need arises, the number of Elevated questions linked from a hub-question could be limited, with the least valuable ones getting pushed out.
- Possibly, if the need arises, the number of Elevated questions linked from a hub-question could be limited, with the least valuable ones getting pushed out.
- Alternatively, visual organization, usage of layouts, grouping, and appropriate typography (headings) could aid the overview of those lists with several items.
- Organic questions would also contain a link to their parent hub-question.
- A question could contain a link to a corresponding hub-question, even if it's not elevated, and is not being included in the hub's list. This way, if someone finds a lower quality (but already hub-link equipped) question via googling, they could quickly navigate towards highly valuable information.
- In this sense, adding the hub link to a question could be analogous to how tags are added. Regular users would be given the right to identify and carry out the association of any question with a relevant hub-page.