Fair enough. I was attempting to be succinct, but the correction is appropriate (I believe you did say that Signal was "standard" and "best").

Btw, I did find your essay persuasive. In my search for a paid email provider (as an alternative to Gmail) I've decided not to go for one that uses E2E encrypted email. If I need secure messaging, I'll use Signal (or something similar) but for email I would rather go for features and ease of use than E2E encryption.