this post was submitted on 02 Oct 2024
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Another aspect is the social graph. It's targeted for normies to easily switch to.
https://signal.org/blog/private-contact-discovery/
By using phone numbers, you can message your friends without needing to have them all register usernames and tell them to you. It also means Signal doesn't need to keep a copy of your contact list on their servers, everyone has their local contact list.
This means private messages for loads of people, their goal.
It's a bit backwards, since your account is your phone number, the agency would be asking "give us everything you have from this number". They've already IDed you at that point.