If: 1. you send a CEASE COMM letter to a CA they must cease further communication with the consumer, and 2. The term "communication" means the conveying of information regarding a debt directly or indirectly to any person through any medium which includes reporting to a CRA, then, once you send a CEASE COMM letter they should be bound from reporting to a CRA. Is this a far-fetched idea?
I know that conveying info to the CRA's has been defined by the FTC and the courts as "Collection Activity", but I'm not so sure about defining it as a "communication".
No, a C&D(accompanied with a dispute of the debt) prevents the CA from contacting you and continuing collection activity - which includes reporting info to CRA's. I think the key here is that you must dispute(ask for validation) in order to make the CA cease all collection activity. hope this helps