No, we don't all know this. What we actually know that people like you say this and expect the rest of us to trust you blindly, which is itself concerning.

Your link is broken.

Your browser plugins are broken, the link is fine. That said, here's non archived version https://www.washingtonpost.com/technology/2021/06/15/faq-data-subpoena-investigation/

100M people is not a filter…

Given world population and modern data analysis capabilities it absolutely is.

No one said anything about that? That is not the model.

That's literally the model. Signal asks you for your phone number when you register, what happens with that information after that is only known to people operating the server. Let me know what part of that you're still struggling to understand.

The business is connecting users. It’s one of the reasons it is the most viable private and secure chat platform. It’s why I have a dozen connections on Signal and literally 0 on every other platform. Because you actually know who’s using it.

That word salad has fuck all to do with the point I made, which once again, is that you have to trust people who operate the server in how they handle this information.

You can have the most private and secure messaging system in the world but if you can’t use it to actually chat with anyone, then what good is it?

Ah yes, because there's absolutely no conceivable way to verify whom you're connecting with aside from sharing your phone number with an American company. You couldn't possibly use any out of band channel to verify who the person you're communicating with is.