Collecting of Personal Data

I previously chose to use the Desktop SkyDrive app logged on with a local account to help maintain my privacy.  I also used multiple local accounts to separate work from home life--My vacation pictures flashing across a tile are not appropriate for a work meeting.  The Desktop SkyDrive app allowed me to connect to the same SkyDrive no matter which profile I was under. 

I know that any application developed for windows 7 and 8.o will natively run in Windows 8.1.  MS has specifically taken additional development steps to prevent the desktop app from working in windows 8.1 and are doing their best to force us to log into our computers with a Microsoft account.  The only logical reason for this effort is data collection that leads to additional revenue.

Could you please disclose to me what additional personal, behavioral, marketing, and diagnostic data is being recorded by Microsoft when I am logged in through my live account verses a local account?

Thank you.