Asked about the leading “creepy” ways brands used personal information in administering loyalty programs, the No. 1 cited action was using programs to see details of friends’ behavior, mentioned by more than half of respondents. Offering rewards based on the sharing of personal details such as income was another tactic that many consumers did not appreciate, cited as creepy by 44% of respondents; and another 43% said the same of being asked to provide a credit card number to receive cash back on spending. Two out of five even found the request of personal information to target the consumer based on demographic to be creepy. Read the rest at eMarketer.