>Importantly, in the ad model the information leakage is an unintended (but unavoidable) side effect. This is quite a spin! The leakage is unavoidable because

>Importantly, in the ad model the information leakage is an unintended (but unavoidable) side effect. This is quite a spin! The leakage is unavoidable because it is an essential part of the sale. >Was that an instance of you selling your customer's data? Yes. The reason you distribute targeted vouchers is to use the data to help identify qualifying customers.