[Jach]

It's all good to point this out, but it's a social argument, not a technical one. If the technical arguments have been eliminated (e.g. you have no technical use for encrypting the connection) then you're left with "Join us in giving the finger to ISPs/cafe routers that inject foreign JS!" Don't be upset when people say "Meh. Take it up with those ISPs directly, or with web browser vendors, I don't care and don't want to join your crusade." At some point web browsers will stop serving content over HTTP unless perhaps with a custom flag turned on, and even then, some people will still not use HTTPS.