Most of the top porn sites do not support HTTPS, meaning the exact videos we watch (and our fetishes) are visible to our ISPs. Why haven't porn sites deployed HTTPS to protect this data? How can we convince porn sites that HTTPS is important and get them to deploy it?
Check out Dr Susan Block's Cliporama, I set all their sites up for ssl when I was working for them they may be the only adult sites that use ssl (thanks to me).
Honestly, I feel that they're not losing any customers as compared to the small overhead they'd take if they implemented it. It's not really a selling point for most people. Even Facebook took quite a long time to universally implement HTTPS.