How much data do you think Google collects from it's free services like DNS, CDN (Google Fonts) etc.
I'm not referring to obviously data driven services (email, search, analytics, maps, translate, captcha etc), nor services that have a clear commercial purpose (Chrome, Android)
I see nothing wrong in collecting data from the services that have a clear commercial intent: search, email, maps,captcha,chrome,android etc.<p>But I would have problems if Google where to log (and keep) queries to 8.8.8.8 or utilize that data in any way.