Re: "calling into question how effectively Redmond has partitioned its service"
"And no surprises I've received at least 4 down-votes,"
You probably received them because your post was rather unclear about what you meant - indeed I'm still not sure either. What would you like the default to be ?
BTW even I could restore the OS and the extra software I use in ~30 mins without touching my personal files.
It doesn't help posting as AC either as there is a certain AC around who trashes Linux ALL the time