I have asked if there is a way for non-admins to be blocked from adding categories in the past (just in general) but there appears to be no way. Makes me just as frustrated, as I'm an admin on several wikis myself.
Hey Raylan13. Can you delete the article Dream Eater, as it is inaccurate and the names of the Dream Eater there are almost all wrong. And then please, move the article List of Dream Eaters to Dream Eater. This article is more up to date and the names are correct too. Thank you.