If nobody lived at 65 you'd get "return to sender" or similar. The point is receiving mail is a passive act, interception is not. Regardless of the researchers

If nobody lived at 65 you'd get "return to sender" or similar. The point is receiving mail is a passive act, interception is not. Regardless of the researchers' intentions, somebody has a responsibility to address their mail correctly. I get enough email from my namesakes to (first).(last)@gmail.com to know it's not the recipient's responsibility.