I remember maybe 8 years ago it was here on HN that a company was found to be doing this and it was shocking to some. But an executive of that company showed up here and said that "everybody does it" and it's "standard practice" and for some years after that anyone complaining about the practice here was not only downvoted but sometimes warned by our glorious compromised moderators.
In my opinion the practice of contact list ransacking should never be allowed, is clearly unethical, and anyone defending it is an enemy of humanity who should be locked away in order to protect society.