User blog comment:Strawberry Cupcake Kitten/Concerning the Edits/@comment-26709630-20151015200337/@comment-29789305-20151015221258

I personally feel like it's unnecessary because if you talked about your OC's friendship with a canon character in the relationships section, then we already know that they're friends with canon characters and so on. Adding unnecessary categories create more clutter and pages among the wiki and it messes with the category system!

Also, I know it's unnecessary from personal experience. All of my ocs are friends with canons, and I never once considered adding that category to any of their pages. Hope this explains it!