I like the idea of trying to make email more about human-to-human connection with less focus on automated-stuff-to-human.

The bit I don't understand, is what about where you need the automated-stuff-to-human, like, authenticating a new account? Would this just block those types of emails? Is the expectation if you used this, that you'd have seperate emails for contacting people vs accessing online services?

for new sign ups that would indeed make it difficult. The tool checks what senders have sent you transactional looking emails and puts them on a whitelist.

if you sign up to a new service you would have to look into your archive for the sign up email.