Interesting read.<p>> So better than many options, but not great. And sadly the usage is connected to my land line, thus allowing those controlling the server to associate it to my home and person.<p>I wonder how often you need to enter that verification code provided by the robot-voice via the phone number used as identifier. Might one be able to bootstrap Signal with a public telephone? Of course that would tie your Signal identity to that specific phone number, but it's a step up from associating it with a phone number registered to your real-world identity.<p>Still pretty useless if you care about keeping your (on-line) identities separate. It seems like most major services on the internet today desperately want that neatly unique key that is my phone number in their databases. The amount of nag-screens asking for it is absurd (Twitter, Steam, anything Google, etc.).