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Re:Burner Phone 101 by qingcharles on Sunday August 24, 2025 @08:41PM (#45009124)
So many online services use the proximity of phones to determine things like related persons and related accounts. Facebook is notorious for this. In one building I lived at Facebook would constantly show me the names of everyone coming in and out as "You might know this person" even though I had no idea who they were.
Re:Burner Phone 101 by aspenmayer on Sunday August 24, 2025 @09:43PM (#45009426)
Airbnb as well, at least in principle, if not in implementation.

Airbnb Is Banning People Who Are ‘Closely Associated’ with Already-Banned Users - https://news.ycombinator.com/item?id=34983871 March 2023 (119 comments)

h/t HN user dmitrygr

Re:Burner Phone 101 by Mistletoe on Monday August 25, 2025 @12:38AM (#45010252)
I have no idea how this isn’t illegal. I’ve experienced the same horrifying loss of anonymity before. People I met long ago and definitely do not want knowing my real name showing up as Instagram suggested friends.
Re:Burner Phone 101 by mcny on Monday August 25, 2025 @03:13AM (#45011164)
Or people who stay next door at an Airbnb and I had a quick chat with in person, like I didn't give them any contact information nor did they give me theirs so how ...