You don't get it - it's a matter of principles more than anything. They're keeping the language broad when they don't need to. They can afford themselves the write to create derivative works (ie converting documents) and ownership (ie the ability to move and replicate data to make the services work) without the language used. As the internet and our usage of it continues to grow, so will privacy policies and terms of services actually start to mean something in our everyday lives. Some folks are taking a notice sooner rather than later (though, as you said, some people are being absolutely stupid about it).
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Digi
Whiteboards are remarkable.