I feel better that you are aware of the tagging issue and Ill stay out of it   Having the discussion in  places is inefficient  but I dont know of a solution   I dont think that a solution for controlling content can be legislated since there is no real method for enforcement short of the methods used for enforcing BLP which is itself problematic  Theoretically guidelines only document actual practices at WP but since there is no consistency in practice it follows that there could be no consistent guideline written  I think that it needs to be left to the editors at the individual pages to determine the content of plot summaries  Good luck and Im happy to chat about this more if youd like