I have used spamcop's free reporting for years but never knew if it was really helping until I tested it for myself. Who hasn't received an email from a scammer calling themselves Farida Waziri, a real person who is the Executive Chairperson of the Nigerian EFCC? I certainly have, dozens of them. Spamcop will probably not appreciate me doing this but one time I decided to string one of these scammers along while also reporting them. I would make up tale after tale as to why I had not yet been able to send them their "fee" to release my millions of dollars. Sometimes it was several days before they replied. They said they kept having problems with their email account and had to reregister (thanks to spamcop's reporting, no doubt). By the time I finally tired of toying with them and told them I had only been doing so to waste their time, their return email address was Farrrrida Waziiiiri. So yes, reporting to spamcop does get results but can't really stop these devils, nothing can. They just reregister using a different name or, as in this case, just add a few more letters to the name they're using. Still, it wasted some of their time, time that might have been used emailing someone else who was more gullible than me who could have fallen into their trap.