Most of these don't bother me - data syncing is understandable (and to me it's not necessarily a data-grab - I'm pretty sure most users would do that in the first place), EXCEPT if the scope is beyond what I'd expect. Cortana is also understandable, because an assistant that doesn't know you is worthless. The encryption part is... ecch, but then again 90% of the people I know that need/want encryption don't rely on Windows for that - they either download a third party encryption or use Linux. Though the last point raises one major question for me (if anyone can answer):
What's the scope of this "collection"? Is it Windows-features only? All Microsoft products? Or every single piece of software on the computer (like Chrome or Thunderbird)?