People are upset to find that you are storing information about them. It is unclear whether, or from whom, you have obtained permission to send email or other communications. Require the person to take some action to expressly permit you to remember their information, and enable them to specify in detail how you use their information. These boxes indicate that the visitor gives the company permission to use their information. Companies don't like to do business this way, because it's hard to motivate people to take additional steps.
Response rates go down.
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