We could avoid the whole problem and just call the Category: Fandoms.
I personally like the source text terminology, and I think it's easy to explain on the relevant pages, but if the Category has no subcategories, and everything in it is just all the Fandom Categories, then why not just go short and sweet.
no subject
I personally like the source text terminology, and I think it's easy to explain on the relevant pages, but if the Category has no subcategories, and everything in it is just all the Fandom Categories, then why not just go short and sweet.