User blog comment:Travisplatypus/Ratings/@comment-2047157-20120210033714

As far as ratings go, we do not really have an establised guideline. My suggestion is that if your fanfiction is on a different site, and you're writing an article regarding info on it, the article must be be clean. However if the fanfiction itself is on the wiki, unless you give explicit warning beforehand, keep it PG-13 at highest.

I don't know, but this is a suggestion.