I was told all these phenomena (on maps) are referred to as "cartographers' follies", so the other names are interesting to hear. In the "real world", it was c

I was told all these phenomena (on maps) are referred to as "cartographers' follies", so the other names are interesting to hear. In the "real world", it was commonplace for compilers of mailing lists to include several "phantom names" in their lists. If those names received a mail, the list-holder would send an invoice to the person who sent it. Simple, elegant, very difficult to bypass way to protect your knowledge-based business.