> With all the information they hold about an account. Which is just the creation date and last connection date. https://signal.org/bigbrother/eastern-virginia-grand-jury/

It doesn't matter. The problem with Signal is that it is vulnerable to being shutdown easily.

So Google or Amazon or where ever Signal is hosted can just shut it down and will receive a request by the authorities to show that it is aiding and facilitating in illegal activities and will blame it on the tons of criminal networks, terrorists, insurrectionists and gangs all using Signal.

Thus, Signal really is a centralized dead end in the long run. Anything that is decentralized or allows self-hosting is the way to go.