During the real estate bubble of the 70s and 80s in Japan, there was a type of Real Estate property that involved selling small parcels of land in forests that had no roads coming to them. This was called 原野商法, and in an era with a serious real estate bubble and before Google Maps existed, there were many people who were conned by these ads - and not for small amounts of money.

Now, many years later, many people are still hanging onto the properties and are unable to unload them as they cannot conceive that their holdings are worthless. The shady RE companies sold their information (or passed it along within their 'organization') and the land purchasers are now preyed upon again; this time, by scammers who claim they can sell the property (but require a ~$3000 payment in advance).

This PDF is the crypto equivalent of that forest land buyers list, and everyone on it can look forward to being preyed upon for the rest of their life.

(Here is a great video about the whole sordid thing, Japanese only though https://www.youtube.com/watch?v=TPzTDRmtozc)