[ndriscoll]

Only if you redefine privacy. I don't want any of my information being leaked.

It is plausible for example that you could form a statistical cohort around people that work in an organization and determine that they have become interested in a topic that reveals internal plans.

Even as an individual, I can only see more accurate modeling of my interests as a tool to be used against me. I do not consent to sharing those correlations. They are private.

[redxtech]

This feature isn't modelling your interests. It's letting advertisers get insight into the performance of their ad campaigns without tracking individual users.

The ad agency is only able to see: their add (y), published on source z, led to x conversions, over a period of time (p).