Here, I'm referring to those on the street into which one posts a letter, not the one on one's front door.
Round here we have had three of them nicked. I knew about one but our village mag, received today, indicates that there were three of them half-inched. The one I saw was missing was one of those that perches on top of a pole - the pole was still there but no letter box.
Do scroats just take them for the scrap value?