Thank you for the link. That's good to know, however, as you alluded to sometimes it's not possible to alert users.
In that vein, end-to-end would protect those users even if you can not alert them. Your hands are tied with something like PGP because you couldn't access it even if you wanted to. Someone mentioned your end-to-end extension. Will you be releasing end-to-end to the Web Store soon? Or some other killer end-to-end solution?
