How is facebooks reach impacted if you never log in? Can they still correlate data from websites with like buttons?

Why is this shared on Gizmodo?

A few points to mention - I’ve been running the beta on an iPhone 5 since 1. it hasn’t been perfect but at no point would it crash as often as you seem to be saying or drain the battery significantly quicker than iOS 9. On my iPhone 6 Plus (installed with GM release) battery life has been pretty stable as well. Most…

If you delete the YouTube app and use your browser you can play videos with the screen off. (You might have to press play from control center after leaving the app)