If the NSA -- and other state / state-like actors -- are omnipotent, and can always find you through your email, etc, you either have to stop what you're doing or be willing to deal with being caught or exposed.
If they aren't all-powerful, but people stop using email to communicate and stop carrying out their business because of the belief they are, that also serves the same purpose as catching or exposing the people in question -- it stops their activities.
This reminds me of the idea behind WikiLeaks -- not just to expose the leaked documents, but to make it so costly to carry on secret communications and operations that people stop trying.
no donkey in this race but how sure this is not you and your circumstances rather than the site itself? Living in certain countries my ISP used to inject all sort of nonsense into every unencrypted site they could.
Anyone not using tls these days is intentionally exposing their readers to harm, which you seem to be experiencing.
Personally I won't view such sites on principle and block them with https-everywhere, though guessing many others do allow it, due to being the default setting worldwide.
https://webcache.googleusercontent.com/search?q=cache:RhVEwm...
Is there a reason it's not a round number?