I never understood the following: an online profile is built out of many scraps of data, each data point on its own is not very conclusive (like search history,

I never understood the following: an online profile is built out of many scraps of data, each data point on its own is not very conclusive (like search history, I am searching for many things, how can they conclude anything from an instant curiosity I had in the past?) Could it be that that customers of this data may see the result as not very conclusive after all? Can we collectively help them to reach such a conclusion by ignoring online advertising? Wouldn't it be great if all this data aggregation/privacy invasion business reaches a point of diminishing returns just because the subject of the manipulation has developed an immunity to all of it? We need an online behavior randomization gadget that turns our valued personal data trail into garbage, obfuscation to the rescue. On the other hand the only thing that counts is the credit card purchase history of a person - and it is impossible to randomize that one (short of sharing the card with your kids)