The problem over there is that there are dozens of top level categories, each with approx 10 sub-categories, and it’s getting unwieldy.
I don’t know how many times I’ve wanted to post something in a category that I know exists, been unable to find it, and give up and dump it into some catchall category like “Just chatting”
I see lots of other users are doing the same, and it kind of defeats the purpose of having categories in the first place.
It also contributes to the impression that the site is too big, and it’s hard to find things, which is periodically expressed by some of the users…especially new users.
I proposed having an alternate category view that showed everything as a two level, fully expanded tree, very crudely mocked up in Notes on my iPad
Using this approach, I think a user could quickly scan the list, aiding in discoverability for the user, and reducing moderator workload moving topics to proper categories.