Do they map it out themselves or do they simply redraw your map?
Some map companies deliberately include some errors (naming etc) to catch misappropriation.
The same is true of music and film index information (label stock number etc or all the movies someone has been in).
You cant simply good to discogs or imdb and lift that information to source your own commercial website.
That’s always the question, which is why the fake towns exist on maps.
And actually you CAN lift the information from IMDB, you just need to rewrite it. Facts are not copywritable in America. Sentences are.