I just had the following idea after conversation with one of my customers: Wouldn’t it be great, if Piwik included the option to detect whether the opt-out plugin of Goolgle Anayltics is activated in a user’s browser and treat this as if he had also opted out of Piwik? At least an option like this one could be provided in the settings tab of Piwik.
Until now this is not more than an idea on which I’d like to hear your opinions.