It is not as simple as just clicking the 'Delete' key.
Junk email shifts the costs of advertising from the advertiser to the recipient.
With one simple email account, a junk emailer can send one message to millions of recipients, turning that message into hundreds, even thousands of Megabytes of data. While it may only cost a junk mailer a tiny amount to send the UCE, it costs individuals and their Internet Service Providers countless millions of dollars in lost time, lost money, extra staff hours, damaged equipment, lost productivity, and lost business opportunities. And it's pretty aggrevating too. To search the ARC enter some keywords.