We could set topics to provide more focus and create really fleshed out entries, but I think keeping it generic would also work pretty well.
I like that proposal and see benefits for both resources.
But, keep in mind that questions and answers on Stack Exchange are licensed under cc by-sa 3.0 with attribution required. I see the getmonero site publishes the majority of the content under the terms of cc by 3.0.
If you find a proper way to mark the contents of the Moneropedia cc by-sa and always keep a proper attribution underneath copied content, I don't see any issues here. Though, I'd prefer a technical solution. Maintaining attributions manually could quickly become a mess.
What about just automatically importing the feed of top questions and reference them in Moneropedia instead of maintaining the wiki separately?