Following on from this failed proposal to add icons to pages that do not have canonical names, I have a new proposal.
Instead of an icon or a tophat notice to state if a name is canon or not, we should instead use the method currently in place for Oz and Lower Agrabah where the location's canonical name is referenced with either an image, page number of a series guide book, or the episode itself (if referenced in speech). That way, we can clearly annotate which location names are canonical, and which are conjectural.