Data broker-type companies do this already and sell it. They even include stuff like your probable religion, probable income/net worth, probable hobbies/interes

Data broker-type companies do this already and sell it. They even include stuff like your probable religion, probable income/net worth, probable hobbies/interests, etc. For example: >Each record contains entries that go far beyond contact information and public records to include more than 400 variables on a vast range of specific characteristics: whether the person smokes, their religion, whether they have dogs or cats, and interests as varied as scuba diving and plus-size apparel. https://www.wired.com/story/exactis-database-leak-340-million-records/ https://www.wired.com/story/exactis-database-leak-340-millio... HN Discussion: https://news.ycombinator.com/item?id=17421140 https://news.ycombinator.com/item?id=17421140