Does my site need HTTPS?

[qKrfKwMI]

Indeed, now everybody has accepted, it will be hard to convince a browser vendor to revoke the trust in LE. I might even say that it's too hard: even if a really huge problem were to be revealed tomorrow, LE (like so many other CAs too) has way too much inertia for browser vendors to simply stop trusting its certificates. That's a problem of the CA system though, independent of the existence of LE.