I am so tired of opening my mailbox and getting SPAM from NAR. I called them last year and asked them to PLEASE remove me from their mailing list. I told them I'm tired of getting their SPAM MAIL.
I suspect they sell or market the data base of Realtor info to the highest bidder. It seems I'm constantly bombarded by NAR affiliates who want to sell me life insurance, health insurance, car insurance, etc.
I once took the time to compare their prices and found that I was way better off with my current provider.
Fortunately I dont find e-mail spam from them to be a problem - just my mailbox.