Interesting to note,that to try and stop spammers,AOL,and Yahoo,are going to charge a very tiny fee (1 cent),to deliver email that does not go through spam filters:

Am I missing something here?

Both companies say that delivered email will receive the stamp of authenticity.But if it has not been through a spam filter,and is supposed to come from a reputable source,what is to stop spammers from "spamming" that reputable source,with fake clone-like copies of messages?
In other words,if you are expecting email from company A,what is to stop spammers,phishing that reputable source,and sending you real-looking "hedders",which when opened,offer nothing more than a years supply of bottles of fake suntan lotion,or ten years of free ice-creams from the Antarctic?