Thanks. That's a helpful reminder... but it's definitely a lot to wade through and not quick to get through and scroll down through.
Whereas, as seen in the screenshot below, you have given us this other ubiquitous link to a "Configure..." our categories and forums --that leads to a much better/easier page layout of the categories and forum to manipulate and also lets us change permissions. I use the ubiquitous link almost every day, which is why I wish it has the existing permission info more obvious on it.
(Aside: Seems like two different category/forum systems were created at different times and allowed to coexist.)