> add a UI that shows the user the key and helps them verify it [...] probably nowhere near as good as Threema Indeed, Threema really has to get more credit fo

> add a UI that shows the user the key and helps them verify it [...] probably nowhere near as good as Threema Indeed, Threema really has to get more credit for this one. How many people verify their contacts in Signal when they opportunistically get the chance? Wire? WhatsApp? Matrix? My mother in law wanted to verify keys with me in Threema of her own volition. In Signal, which she tried for the same reason (securely communicating medical data between colleagues), she didn't even know it was possible, let alone that she should be doing that.