Yeah I can imagine a jam-packed cruise ship might be useful provided the signal propagates from deck to another (unlikely), but it's quite a niché use case.

>Also why would one want to have the data go over some servers thousands miles away when the device is right next to you?

Why would that matter? Use Signal to protect the content, or use Cwtch to protect content and metadata. If you need to exchange secret communications that mustn't go through some server, why not discuss f2f with no phones around? You'd also eliminate attack vectors where your (chances are, Chinese Android) device spies on you, as well as anyone who has compromised it to read messages from screen.

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fc417fc802 6 hours ago | parent [-]

> Why would that matter?

Reliability? Why should we want to centralize things unnecessarily? It's nice as a fallback but then so too is P2P.

	▲	6510 5 hours ago \| parent [-]
		If your message goes though my infrastructure I can shut it down when I feel like it but even if I really don't want to do that I still might be forced by other parties commercial, private and state owned. You shouldn't need any kind of permission to send a picture to your mum sitting next to you on the sofa.