We had captchas to solve that a while ago. Turns out, some people are willing to be paid a miserable salary to solve the captchas for bots. How would this be different? The fact of being a human becomes a monetizable service which can just be rented out for automated systems. No “personhood” check can prevent this.
i think they mean that signal on desktop does not encrypt their content at rest, which is acknowledged and not an issue they are intending on addressing.
But it seems to have recently changed? I’m learning thus as I wanted to find a source.
Source: https://candid.technology/signal-encryption-key-flaw-desktop-app-fixed/