[tomc1985]

Data can still be anonymized and dangerous. In extreme cases de-anonymization is available and for all the rest it still results in the targeted individual being exposed to manipulations and attempts at influence. And the amount of influence that advertisers wield absolutely needs to be curbed to an absolute minimum or, even better, non existence. People need to be making decisions on their own rational self-interest and not emotional overtures amplified by an intimate understanding of someone's fears and sensitivities.