>If they haven't found anything in the telemetry that makes headlines yet, most likely there's nothing to find.

There's plenty to be found and Microsoft isn't even hiding it: https://technet.microsoft.com/en-us/itpro/windows/manage/con...

That data, even at the "Basic" level, is enough to be used for 'bad things'. And since it's on someone else's computer you can't know who has access to it, so you can assume the worst.

>Singling out Windows is ridiculous.

Just Windows 10. Because it's the only mainstream desktop OS with forced telemetry and no opt-out option.