The link , in your link, that allows the reader to read the "rest of the story", is not working.
But I'm very familiar with the story. It is JUST SO CLASSIC about how person's can become sincerely convinced that they "know where a treasure is". And have machine readings that "tell you something's down there". And will go to insane measures , that defy all logic, .... utterly convinced they know where a treasure is.
The machine in this case was a TM 808. No doubt the guy was using it wrong (steel-toed boots ? improper settings ? WHO KNOWS ?). Gets a signal in his yard. Starts digging. Each time he turns on the detector, it still beeps. So he digs deeper. Even gets to the point where he hires guys to dig. Eventually coming under the scrutiny/curiosity of his neighbors. And then the public works dept (d/t it's becoming a hazard ? Or falling afoul of const./building codes?).
But the guy will not be convinced. I suppose that all these people, in-his-mind ... are trying to "keep him from his treasure", that's "just out of reach" . Heck, maybe he even knew an old yarn of a treasure story of some historical happening in his area. Which would be ALL THE MORE PROOF that the beep in his yard is treasure, right ?
It's a good story that sheds light on the psychology of some of the claimed treasures that have made-the-rounds recently, even here on T'net. You know, someone comes on claiming they know where a treasure is. And now it's merely a matter of overcoming govt. red tape, or heavy equipment to drain a swamp and dig-down 60 ft, or thieves that no-doubt stole the $ when he wasn't looking, etc... But rest assured: a Treasure certainly exists or existed.
Good link that bears repeating.