Even if they introduce an "off" setting, there's no good way to verify that they aren't collecting/sending that data anyway.
[1] https://technet.microsoft.com/en-us/sysinternals/tcpview.asp... [2] https://technet.microsoft.com/en-us/sysinternals/processexpl...
A monitoring device connected along the network path would be more trustworthy.
Now, for example, it feels great to happen to notice my harddrive spin up when I'm sitting idle at my desk, and relax knowing my OS is just doing what it's supposed to, not covertely spying on me or installing some crud I didn't ask for.