I’m becoming convinced.
And it’s not topic-level permissions, it’s just another category permission. I can imagine how some pieces would work, but there are a bunch of little things that I’m not sure how to do.
Seems like it could be an interesting project. I can’t help out right now, but if you have some time in a month or two, ping me and maybe we can work on it together. Of course, if someone were paying then it would be easier to find the time!