thanks for the link

Does OSM have copyright easter eggs?
Although some OSMers have deliberately added errors to the OSM data as well (see posting on legal-talk by User:80n), this is strictly discouraged and contrary to OSM policy. It’s also very unnecessary. Even if we seek to represent reality perfectly, that will never be the reality of map data. With OpenStreetMap there’s a very unique and distinct fingerprint evident in the data coverage and details included, and yes, in the errors made. For example in 2012 the OpenStreetMap foundation could issue a statement with absolute confidence that Apple had used our maps (without crediting us) based on very evident copying, and without the need for introduced errors.