Wouldn’t the receiver of the note likewise know where the author lived, because the spaces would be marked? Thus setting up terrible house-burning retribution?

And wouldn’t you, as the receiver of said note, be more likely to go on a batshit insane house-burning rambage if some asshole burned your house down first, just because you parked in his spot, and you also had a note predicting he would do so?

I think the writer of the note should watch out.