And everyone in your contact list, who has Signal installed, gets a message: Vzaliva is on Signal! At least if you're using the default settings, which is saf

And everyone in your contact list, who has Signal installed, gets a message: Vzaliva is on Signal! At least if you're using the default settings, which is safe to assume most installs will. On the plus side, Signal is now common enough that it's no longer "Oh. That weird encrypted app that probably means you're a hacker." On the minus side, it's still a centrally managed service, and as most intelligence agencies will point out if asked, the message content being encrypted doesn't really bother them. Who you talk to, how often, and with what patterns? That's good enough for most of what they need to know, and I'm far from confident that Signal encrypts the metadata well enough to deter analysis. Matrix at least has the advantage of spreading the traffic out and making it a bit harder to analyze...