I've noticed this too. That said, it's not really terribly unusual to actually just receive someone else's mail. I've gotten mail that was meant to go to my ne

I've noticed this too. That said, it's not really terribly unusual to actually just receive someone else's mail. I've gotten mail that was meant to go to my neighbors a number of times. So I reckon that an issue like this probably isn't a big deal in the long run; if it was that big of a concern, then actually accidentally delivering to the slightly-wrong-address would be worse.