While I agreed that ProtonMail is not completely truthful about their claims on encryption, they are one of the few vendors out there who don't completely block

While I agreed that ProtonMail is not completely truthful about their claims on encryption, they are one of the few vendors out there who don't completely block user registration when the user is using TOR. That means a ProtonMail account can be created completely anonymously. I call that an advantage over some other options if you want to create secondary/throwaway accounts (for example, you want to register a small forum and you don't truth their admin). I personally won't recommend ProtonMail as someones main email service. If I want to send anything secretive such as sharing a password, code etc, I'd rather send GPG encrypted email via Gmail.