You give your name to one site, but choose not to give your name to another, yet unbeknownst to you, the sites are allied, and using a common cookie identification, they can share what you didn't want shared.
Most people find this intrusive.
mnli hypothesis: Most people find this intrusive. premise: You give your name to one site, but choose not to give your name to another, yet unbeknownst to you, the sites are allied, and using a common cookie identification, they can share what you didn't want shared.