[pabs3]

When you run 0ad, the main menu screen has a prominent dialog on the lower right, that has two buttons; "Terms" which brings up a terms and conditions dialog with info, which you can accept or decline. The dialog also has buttons to load the terms online, or load the feedback stats online. If you accept then the other button on the main page "Enable feedback" is automatically clicked. Later you can click "Disable feedback" to disable it at any time, and subsequently click "Enable feedback" again.

https://trac.wildfiregames.com/browser/ps/trunk/binaries/dat... https://feedback.wildfiregames.com/

It doesn't show you the exact data being submitted, but IMO that should be mandatory. ISTR some Mozilla stuff does, maybe the crash reporting.

PS: https://wiki.debian.org/PrivacyIssues