OP has an extravagant threat model. Yeah if I were trying to hide communications from some dictator where even the metadata of recipient and timestamp is damning then of course email is out.
PGP is a good way to communicate under the right circumstances. Say I'm writing to someone I trust and have verified their key fingerprint via a secure channel (in person, over the phone, etc). If I were sending them login credentials for a shared site, or bank info for setting up a payment, or even just wanted to block general corporate snooping then what's wrong with PGP? It's "pretty good privacy."
It's nice that I can apply the cryptography on a local machine and then send the result over email. I don't need to sign up for the paranoid chat app du jour.
PGP is a good way to communicate under the right circumstances. Say I'm writing to someone I trust and have verified their key fingerprint via a secure channel (in person, over the phone, etc). If I were sending them login credentials for a shared site, or bank info for setting up a payment, or even just wanted to block general corporate snooping then what's wrong with PGP? It's "pretty good privacy."
It's nice that I can apply the cryptography on a local machine and then send the result over email. I don't need to sign up for the paranoid chat app du jour.
( In fact PGP is useful for more than signing/encrypting mail, see https://begriffs.com/posts/2016-11-05-advanced-intro-gnupg.h... )