The problem you've described, honourable member, is a real problem. Many of us who live in urban environments know that. You've talked about the right to be anonymous, to live anonymously, without identifying oneself to one's neighbours.
You asked a specific question. I'm not sure I have the expertise to answer it. I don't know what the deterrent effect is of adding new penalties to the Canada Elections Act, or whether it is an issue of training letter carriers that you should take up with Canada Post, or..... There are probably many angles to this. Who manages the vestibules of many of these multiple dwellings is, I think, an issue in modern society.
You would also have to look at the implications. I think the idea of respecting the privacy of those who don't want to be publicly identified except when they're required to be is interesting, but then there's a whole commercial practice around this. You'd have to look, I would think, in all fairness at parallel provisions for the private sector, where sometimes you find your name on all kinds of information that comes to your door, although you have not necessarily remembered giving it out to the person who sends it.