That was discussed here, starting with [1]. tl;dr: Too many broken sites out there, and this kind of opportunistic encryption doesn't hold up in any adversarial

That was discussed here, starting with [1]. tl;dr: Too many broken sites out there, and this kind of opportunistic encryption doesn't hold up in any adversarial threat model (MitM blocks :443 and forces downgrade to :80). [1]: https://news.ycombinator.com/item?id=12872100 https://news.ycombinator.com/item?id=12872100