I got repeatedly harassed at my PO box when I looked into similar issues in the states. It really was annoying since I specifically got the PO box because people kept being rude to me within the building I lived in for my legally protected speech, it made me incredibly angry. Just the other day, I was finally in the right headspace to check my mail -- something I used to do daily -- and there was one of the people who had threatened me literally sleeping in front of the boxes.

(Meanwhile, I've had a series of violent responses every time I reiterate -- I'll post less when I find a job you entitled rich neoliberals and literal nazis.)