But putting a phone number in immediately exposes protesters to association. Sure, Signal can’t give out the contents of messages, but it still has the chain of contact. So if a government gets hold of this record, legally or otherwise, now you have everyone associated to a suspect phone number/person and can start rounding them up.
It’s the complete antithesis of freedom of association when there’s a record of everyone that you’ve contacted. The contents don’t enter into that problem, and I can’t see why they feel the need to keep this as part of their system. It purposely makes it impossible to use this for something like peaceful protest. So, no, it doesn’t give you privacy from governments, because governments that don’t respect freedom of association will use that information to punish dissidents.
I can’t imagine any reason to use phone numbers except to purposefully keep this chain of association for governments to use. Even Facebook doesn’t require this sort of personal proof, and it’s suspicious as hell.
Sure, Signal can’t give out the contents of messages, but it still has the chain of contact.
it doesn’t. they’ve been ordered to hand over data multiple times, and the only thing tied to the phone number they have is 1. time the account has been created and 2. last time the account connected to the server: https://signal.org/bigbrother/
You’re mistaken on the basis of your beliefs here. Signal only had two pieces of data around your phone number (joined datestamp, last online datestamp). This means that governments can’t petition signal for any more information, since signal simply doesn’t have it to give (by design).
Your point on fb is hilarious, because they do require it. They just don’t require you to input it, because (1) they already have it and (2) you freely provide the missing pieces without them even asking. But, like I said earlier, if this goes against your posture, use something like Briar or Matrix or whatever. Choice exists, because everyone is different and has different postures.