said by LLigetfa:No google is a trustworthy company if they did something really shady they would face legal action. I use googles dns for my third dns server as a forwarder as well. (First upstream, then level3, then google)
I wonder if that could/should be extended to the use of other DNS services regardless of whether or not you derive revenue from it. I use Google DNS mainly because it is so much faster than my upstream provider's DNS. Does that mean I need to inform all of my hotspot users that Google is mining data from their internet use?