alt Hacker NewsCan you elaborate a bit about what you mean by "the blessing of a CA"?
I agree that it's true that you need a certificate to do TLS, but importantly Let's Encrypt isn't interested in what you do with your certificate, just that you actually control the domain name. See: https://letsencrypt.org/2015/10/29/phishing-and-malware.html
Their policy today is to grant certificates liberally. There is no technical guarantee that this remains the case indefinitely, only a political one. I don't doubt the sincerity of this guarantee, but I wish I didn't have to rely on it.