And really that's what nfic means in our fandom. Beyond PG13. For all kinds of reasons. If a story has one beyond PG13 cussword in it but is otherwise gfic and the author feels that cussword is vital to the story and can't be removed - that story will be posted in nfic (and hopefully archived at Annesplace). It won't have any sex in it though.
Couldn't one apply the R rating for stories that are beyond PG13 for reasons other than sexual content? They would still go in the nfic forum (which could then be renamed nFanfic and R-rated Fanfic), but that way people who want to avoid nfic, but don't mind violence or strong language, could tell which is which.
Just a suggestion.