b. if you don't revise the privacy settings you'll end up share everything with Windows;
This is what I don't like about things like this. Everything from computers to apps to social networks all want to know as much info about you as possible so they can either sell it or capitalize on it in some way. The future looks paranoid and claustrophobic to me withe everything tracking and tracing you and not much we can do about it without refusing to use all these things.
Everybody can access the internet, more or less, not everyone can manifest it. (Build a laptop, lay data lines, program their operating system...)
What do you think is running through the mind of the men and women carrying out these horrific lone wolf attacks?
We're giving everybody a window into the universe and then expecting that they can cope with the weight of reality.
Every schizophrenic and paranoiac in the world thinks their every keystroke is logged and monitored by their own personal NSA Agent.
I have long believed this to be one of the most intricate and tortuous problems facing us as a global society.