@Netto-Hikari Yes I suppose so. You'd have to redirect old urls to the new ones. I just think that, especially for our use of the forum, it's ideal to have the category name (which isn't going to change, in our case).
It is a pain to have to wade through all categories - I agree.
I can't even find an option to configure what guests can and cannot do generally - or do I miss something?
Are there scripts that can do this?