I don't want that 'if' to be anything. It was the premise, because the parent comment I was responding to was stating it as a fact for where they live.
My point is that signal revealing your phone number and when you signed up doesn't reveal anything new about you. The issue is the case K2L8M11N2 mentioned when they have compromised a device (and can now tie content to IDs via the phone number).
> "That's going true in any context where your number can be revealed...under any conceivable hypothetical scenario."
This is just false? Without access to the content on a compromised device a phone number alone doesn't reveal much (that's the entire point of the e2ee), if it limits the ability for Signal to hand over the social graph or any other metadata (which does reveal a lot) that seems like a win.
Obviously revealing the phone number still reveals more than a username would, and if you can get all the benefits of not having to upload your social graph to their servers or share metadata without having to use phone numbers that would be better - I think they're working on that.
People using apps that upload their social graph and collect their metadata so they don't have to use their phone number are probably making the wrong choice when considering the trade-offs.