It does because what you do is put your FFA page into Data Bases where people are using automatic submit machines such as blasters, submit wolves and entering their ads into the free submittal services offered on the web. In the data bases you can easily send out 50 thousand non-spam thank you letters. These letters go to people who have mostly never been to your site. And, you don t lift a finger after your initial set up. But, don t get excited.
Many people send out their messages using automatic submitters which they use a dump box mailbox.
Some are clever enough to have to never see the thank you letters. But many do not. Now, when they submit - they get a huge amount of email back. And, as they go about deleting them they read the advertisement headers. And, that is where your job comes in.