Trying to imagine how the structure for the upcoming new board category would work best, I took a fresh look at the current implementation of child boards.
I think there are currently two problems with them.
(the second one has always been slumbering obscurely in the back of my head, but I can now describe it specifically)
1.
If the new 'f.a.q.' board topic expands and contains a lot of child boards, the front page can become very busy with all these child board shortcut labels.

2.
If you currently open a board category that happens to contain a child board, the focus of the user will immediately be drawn to the list of posts.
There is a good chance he will not even notice the child boards that are available from there.
(how many of you never noticed the child board here for example?)

- - -
My proposal is:
A.
Remove the child board shortcut labels from the main board completely.
It only takes a single click on a main category to open it and immediately see the child boards that it contains.
And they are presented in a better way there, having their descriptions included.
B.
As soon as a main board topic gets a child board: Add another one, and move all current posts to it.
So when you open a board category that contains child boards, you will be presented with these child boards only, and open the one that interests you.
So there would never be a confusing mixture of topics and child boards displayed on the same page.
Looks clean doesn't it?:

The same should apply to subsequent child boards.
In this way the navigational structure will remain clean and consistent, and also problem nr. 2 that I mentioned will not occur.