I am over 25% 'not provided' on inbound search. About the industry average and rising.
Hey Google... How the **** does this make the web better?
How does it serve your users?
How does it serve the people paying your frikin bills?
I do not think there is a single valid answer to any of those questions.
Oh... but if I use the 'free' Google Analytics they can see what happens on my site so they can perfect their product.
Google is sucks donkey dong.