> And yes, I intend to use FB in 'read-only' mode from now on. If you visit a profile, view a video, open a group or message it's all recorded. I'm betting tha

> And yes, I intend to use FB in 'read-only' mode from now on. If you visit a profile, view a video, open a group or message it's all recorded. I'm betting that they can even tell the probability you read an ad just by seeing if you stop scrolling on it and then start scrolling again.