The Initials are suppose to know which article belongs which.
The article, Christian (LH) has a "(LH)" on the article's name at the end. This is suppose to be connected to the fanon stories, Lost Hands. As you can see, they both have a "L" and "H" in there name.
If a article that has belong to the story BUT has no initials, it will one, have a notification on the top of the article showing who it belong to (which would be the creator who made there fanon story) or it will be renamed to have the initial.