We have discussed the phenomenon of the uncanny valley here before. It is the phenomenon in which a robot or animation looks enough like a human to trigger our neural human recognition system but unhuman enough to trigger our neural mismatch/somethings wrong system (I can go into the neuroanatomy if someone asks in the comments).
Recent experiments suggest that I’m not alone in my discomfort. Colin Strong, a marketing consultant in the UK, storyboared several high tech customization scenarios, ranging from the simple (targeted direct mail) to the sophisticated, like health insurance companies crawling info on your food purchase habits to adjust your premiums. When he showed the scenarios to subjects, he found that the more personalized the services got, the more people liked them – until they got too personalized.