These are not the same as real ads that pay for the content you're seeing. This is like some punk buying all the iPad's at walmart, then setting up a table and selling them at a markup inside of walmart. Whatever is getting spammed (pinterest, facebook, email, etc) is providing you with content, and charging you adspace. This jerk provides nothing, and charges you adspace. It's theft, plain and simple.
In order to stop this, there needs to be regulation on how retailers, manufacturers, etc can advertise. There should be no referrer fees outside of legit advertising partnerships... That's what funds this crud.