I always found it fascinating that a TV Channel can sell Ads with out any real tracking any real data on the individuals users watching the ad, and they can sell these ads for $$$$$$$
Yet you tube which has much higher viewer numbers than any TV Channel can not seem to sell ads at all, the ads are of low quality, and they need to be ultra targeted.
At the end of the day though, if they can not find away to market their ad space with out tracking me and knowing every detail of my life well then they need to simply exit the market.
There is zero justification for building these types of databases, they should be resisted as strongly as possible, and we need to institute much strong data security and privacy regulations on how the data is collected, stored and used. Including the ability to require all services to allow individuals to audit the information they are collecting about them and to force a company to delete all information about them if the user wishes to stop using the services.