Hi softqubetechno - welcome to the forums.
I think you've misunderstood busboy's problem. He isn't sending marketing e-mails. In fact, he isn't sending e-mails at all. He's providing a facility for his users to e-mail their friends with articles they think will interest them. I often share a link with a friend, when I find something I know will interest them, and I'm sure other folk do, too. That's not Spamming, and neither is the situation which busboy describes.