MAJOR BINGO. They don't do it this way. Jokesters, did I mean Prankster, DO do it this way. Friends of the Dem War Room DO it this way. And also drive-by phone calls, mysterious newspapers with certain articles circled in red (usually involving someone getting hurt or murdered). Pranksters may also wish to sit in front of your house in their car armed with "satellite and ears" for hours, glaring at your house. You might continually find nails, brand new ones, in your tires. So, after a time, Wild Bill may just learn to ask someone else to pick up his mail and toss the obvious sicko ones into a sack for later deposit with the police report, or learn to use a "call screening" device.
BTW, that happened BEFORE the letter got published. Editor lost his job over that one.