alt Hacker NewsJust because we cannot identify any disadvantages does not mean that there are none.
Imagine a foreign state-sponsored agent waiting at the door of a public or private decision-maker, convincing them to cooperate. Home addresses are no joke. Especially if you can grep through the whole family tree.
It is more or less trivial to find someone's home address now if you try at all. Thats my point on duplicated data in hacks.