[lmm]

Missed one important part in my other reply:

> As far as I'm aware, browser vendors do not benefit from users using HTTPS everywhere. They encourage its use because it is generally beneficial to users.

Google (which is to say DoubleClick), which funds the majority of browsers, has a huge financial interest in HTTPS. They make their money on ad tracking, and it suits them to put a moat around that; privacy initiatives help them by making it harder for any new competitors to get hold of the same information they built their business on.