In fairness, the person sending the email or the memo isn't usually the person that came up with the policy, right? Isn't that usually done by a large group? W

In fairness, the person sending the email or the memo isn't usually the person that came up with the policy, right? Isn't that usually done by a large group? What's the difference in just emailing HR to complain than replying to the email? In either case, can you really expect anything to happen in a large company?