This is a rough patch as a discussion point, and will be abandoned.
Currently startCount and usageTime is collected by default, with no way of disabling it.
These are also used to time the encouragement messages.
This patch makes possible to disable tracking, along with the encouragement messages.
This patch even if it makes possible to disable data collection, it does not fix the conflict with General Principle of KDE Software Privacy Policy. Which states that software does not collect information without explicit user action.
As a general rule, software produced by the KDE Community does not collect, transmit or otherwise transfer information from end-users devices except as a result of an explicit user action.