Before revision: Due to concerns about privacy since software telemetry can easily be used to profile users, telemetry in user software is often user choice, commonly presented as an opt-in feature (requiring explicit user action to enable it) or user choice during the software installation process.
After revision: Due to concerns about privacy since software telemetry can easily be used to profile users, telemetry in user software is often user choice, commonly presented as an opt-out feature (requiring explicit user action to disable it) or user choice during the software installation process.