I'd say the real issue is that Windows 10 not only defaults to having telemetry turned on, but that it also does not allow a system administrator to turn it com

I'd say the real issue is that Windows 10 not only defaults to having telemetry turned on, but that it also does not allow a system administrator to turn it completely off. However, I would agree that if preferences are changing without user intervention, that would definitely be a problem. I haven't heard about users having that problem and can't find examples of it happening on the web. Do you have a citation?