You are assuming a benevolent advertiser that uses knowledge about you in a way that is aligned with your long-term interests. If we assume that a white noise

You are assuming a benevolent advertiser that uses knowledge about you in a way that is aligned with your long-term interests. If we assume that a white noise advertising is less effective than a targeted advertising then it is in the interest of most people to prefer the former because a benevolent advertiser is a rare bird in real life.