Mailinglists are honey for Spammers

Hi, Currently i'm working on a php script which allow to archive the content of email accounts. It fetch the accounts through the imap extension and store the messages in a database. It is easy to subscribe an address to this list and collect email adresses. I mean the attemp to hide emails, example: myemail () yahoo ! com has only a psychological value, but it prevent from nothing. Regards, atur