User blog comment:Grizzhly/Addition to article names/@comment-366087-20160211040252

Wikia.com. Wikimedia, and Wikipedia's standards are, as you say, only to add parentheticals when there is a need to add distinctiveness when there are same-names, also known as title-collisions.

If an editor doesn't know who Eric Cartman is and the show/franchise he is from, they should probably not be doing much in the way of editing his pages.