Signal is the world’s most widely used truly private messaging app, and our cryptographic technologies provide extra layers of privacy beyond the Signal app itself. Since launching in 2013, the Signal Protocol—our end-to-end encryption technology—has become the de facto standard for private commu...
Who is maintaining all these “unused” devices that you will want working pretty consistently? Who is responsible for replacing hardware when it dies? Who is looking into it when someone stops receiving messages? What happens when the person hosting thousands of users just stops wanting to do it? Who migrates these accounts?
Frankly, your argument sounds more like wishful thinking than anything practical. You’ve basically described the plan as “Magically some devices in someone’s basement will suddenly start running a messaging service, maintenance free, from now until the end of time”.