They should sell the ability of creating an account not attached to a phone number. Pay $5, get a code that allows creating a single account, enter the code somewhere in the app to allow using a user name in place of the phone. This limits spam and, as this code can also be sent to another person, there is a way to hide the relationship between payer and final user. No need for cryptocoins, NFTs, or other stupid thin…
You might be interested in the technical reasons for requiring a phone number to use Signal. Not sure if there have been any updates since this blog post. https://signal.org/blog/secure-value-recovery/ > One challenge has been that if we added support for something like usernames in Signal, those usernames wouldn’t get saved in your phone’s address book. Thus if you reinstalled Signal or got a new device, you would l…
Like it's more effort, but not some intractable problem, at least stated like this.