Is Signal equivalent in scale to iMessage or WhatsApp? Does it come preinstalled on devices as well? All three are tools, I agree, however one of these things is not like the others. The average toolbox will have Phillips and Robertson screwdrivers, but not a Torx type.

Signal takes at least a grain of interest to even get a user to install it, whereas iMessage is already there ready to go and that suits most people just fine. The question I asked was based on my incorrect assumption that centred in the Venn diagram of people whom bother to use Signal, read a technology forum, and look at an article about backups, there would also be an overlap with people that already had a backup solution in place.

Your Marlinspike comment notwithstanding, thank you for demonstrating that I was wrong. I should have remembered most people just want to drive a car, not concern themselves with how or why the wheels go round.