Thread:Avatar2006/@comment-477304-20191121194939/@comment-477304-20191123015016

You're still adding grandparent categories. To clarify, it's when you add categories to a page that already has one of its sub-categories. For example, the "Materex" category is a sub-category of "Sonic X characters" and "villains." This means that any pages about the Materex does not need those two categories because they're in the Materex category.

If you have any further questions, don't be afraid to ask.