Yes, you raise a difficult point about the phone number required feature. And you're at least the second person I hear (legitimately) complain about it; the ot

Yes, you raise a difficult point about the phone number required feature. And you're at least the second person I hear (legitimately) complain about it; the other was from a technical friend, during an in-person conversation. I realize that requiring phone number compromises the anonymity aspect (despite Signal's unparalleled privacy, given the alternatives). But I was giving (and still do) Signal the benefit of doubt and assume they're also going to implement username / password scheme – not sure if it's a good idea or not.