Learn the definition of the words you are using before using them. The only thing this statement shows is you are arguing in bad faith, have no interest in attempting to gain new perspective and simply want to shut my argument down since it doesn't agree with your priors.
>If you only count the number of redheads, you are in the clear. If you follow them around, find out where else they go, where they live, how many people live in their household, the household income, etc., you might violate some laws.
I'm not following them around. In fact, I'm having a bunch of people come to my server and leaving their ip address, name, birthday, etc and I am not coercing them in any way and I am providing them a service. Then I use this information to target ads at them.
So again, explain how it is unethical for me to use information that I have observed from my porch?