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You also have the reverse problem which is alluded to in the article, that a Phone number for a non-traveller, is pretty static and unlikely to be changed by th

You also have the reverse problem which is alluded to in the article, that a Phone number for a non-traveller, is pretty static and unlikely to be changed by the user often. However Email is more disposable and I can spin up and shut down email accounts that I could register with Signal et., al. for what I believe to be sensitive communications. I feel that providers that use number-as-identity know this and use it as a way of assuring they have greater confidence of knowing their user, especially after everyone failed so spectacularly at real names policies.

forgotpwtomain 10y ago
> Phone number for a non-traveller, is pretty static and unlikely to be changed by the user often. However Email is more disposable I entirely disagree. Even without traveling outside the US - my US phone-number has changed several times (change of carrier etc.); while it is possible to spin-up and shutdown email accounts (e.g. dummy accounts for services requiring registration) -- by this time most individuals should have a single serious account (and a larger percentage in the future): online bank statements, online bills, online shopping -- do you really not have a single primary account?