How is calculation of health insurance premiums not #1 on this list ?
Recently I purchased a DIY mole removal product from Amazon. An expansive actuary table would show a "concern about moles" has a slight positive correlation with "skin cancer". Arguably my premium should go up because of this.
It also blows my mind that Amazon won't allow you to delete a purchase from your Amazon order history. It is there forever and there is no reason that data can't be sold even if the account is closed. To be fair I am making assumptions without having read the privacy policy in Amazon's EULA.