If there’s one message to take away from the latest batch of changes to diagnostic data collection rolling out in Windows 10 preview editions, it’s this: Don’t call it telemetry.
The most visible privacy-related tweak in the just-released build 19577 changes the labels for the main options on the Diagnostics & Feedback page in Settings, but the more important changes are hidden in a batch of Group Policy settings. And several of those new and revised policies appear to involve orders to replace the word telemetry with the less loaded term diagnostic data.