[anti-abuse-wg] Overview of abuse-c?

Is there a (short) simple overview of what abuse-c contacts are, and why they're useful? I've been in contact with a couple datacenters who respond to my abuse reports with "please see this other address, like whois says". I let them know their abuse-c entry points to their email address, and they proceed to tell me the exact same thing. It would be quite handy if there were a page with a short description of what it is, and why they should implement it. So far, the only thing I've found is https://labs.ripe.net/Members/denis/creating-and-finding-abuse-contacts-in-t... , which is pretty detailed.