Why do dealers email you when your selling?

How do you get dealers to stop emailing you to sell you something when you are trying to sell equipment yourself? I find it very rude to be emailed when I post something for sale by a dealer trying to sell me things I'm not even interested in nor contacted them about. The whole purpose of the classifieds are to sell your equipment and correspond with potential buyers, not to have dealers hounding you and constantly emailing you to buy their equipment. They are not interested in the least about purchasing your equipment, just using the email on the classified ad to bother you. How can we get this stopped? I'm so tired of getting emails and thinking someone is interested and it's a dealer trying to sell their product. By doing this they are getting around the $2.00 ad fee which Audiogon deserves for running the site for people to buy and sell stereo equipment. I don't appreciate spending my money to sell my product and having these dealers bother me to buy their products. Dealers - Post Your Own Ad and stop bothering other audiophiles trying to buy and sell their equipment. This has happened numerous times including today, and I am tired of it. Any suggestions on how to get them to stop would be appreciated, especially from Audiogon. Thanks.