Signal is to privacy what duct tape is to a broken item - it solves your issues and concerns, but you shouldn't expect it to last. Instead, consider Matrix.
You’re basically competing with “Simply download the app (Signal) and use it.” That’s a tough thing to motivate anyone to do, and I can’t articulate in a convincing way to anyone I know why it’s better. In practical terms as far as they’re concerned, Matrix are XMPP are not any better and my preference that we didn’t use siloed centralized services is purely abstract to them.
You’re basically competing with “Simply download the app (Signal) and use it.” That’s a tough thing to motivate anyone to do, and I can’t articulate in a convincing way to anyone I know why it’s better. In practical terms as far as they’re concerned, Matrix are XMPP are not any better and my preference that we didn’t use siloed centralized services is purely abstract to them.