I truly believe carbon copies is one of the worst aspects of email and leads to most of the traffic. People just add and add to the CC list: Their manager, their director, three colleagues… so on and so forth. Everyone adds more people and the resulting number of emails grows exponentially.
Very, very rarely there is any valuable information in these emails. Particular as a manager you get CC’ed for many different reasons, most of them not at all requiring you to read the email itself.
So true. The “CC” field on emails is one of the most abused parts of corporate culture today.