Reminds me of the strategy of map companies, that planted tiny errors or fictional streets in their maps, so that they can identify other map companies, that copied their work.
https://en.wikipedia.org/wiki/Agloe,_New_York
When another map maker put the actual settlement on their maps, the original publishers cried foul, but then discovered Agloe had become real!
Very fitting, if people weren't sure if it 'be or not be'.
https://www.nytimes.com/1988/09/03/world/soviet-aide-admits-...
In contrast, the classified maps were remarkably detailed:
"Why Every Map of China is Just Slightly Wrong"
You can report the location to Google as "bad data" and they'll delete it, but then a totally different fake location will re-appear in its place a few days later.
https://londonist.com/2015/11/london-trap-streets
Tangential: Are A-Z guides still a thing? I still have my old one from many years back when I lived there.