That reminds me, I have noticed that INFJ's are often involved in editing and moderation. They seem to understand grammatical and social rules clearly and like putting things in order. Any INFJ editors out there?
I definitely embody these characteristics and was often asked to edit friend's papers in college. I remember having an English professor that was notoriously hard on grammar and being the only person in the class to receive an A. One of my former jobs involved finding errors in documents, but I am not a professional editor. I decided to go into the sciences instead.