Rule 27 says, "Fandom content is not permitted on this site with the exception of roleplaying fandoms in your Gamemail or RP Scenes. Discussion of fandoms are fine."
While this does seem to be a bit of a grey area, my understanding of this rule points towards- no. Fandom content isn't allowed period (exception: PMs and general chatter), and that intolerance would include blogs. That said, if anyone knows more about this than I do (i.e a mod) please do correct me so we can get this user out of the dark. x)