Webwork - 3:00 pm on Sep 26, 2011 (gmt 0) [edited by: Webwork at 4:31 am (utc) on Sep 27, 2011]
I'm not certain what you mean by "most domains". How large was your sample set?
Why would privacy be maintained for some, but not all, domains? Do you see a pattern?
Are the "unmasked domains" parked? Nothing would surprise me less than feed providers FINALLY requiring that ALL domains "on their feed" NOT conceal their registration details, that they have complete and accurate details, etc.
Requiring unmasked domains, with accurate contact/registrant info that matches up to the traffic-payee, would be one more step in reducing the amount of click fraud and abuse.
[edited by: Webwork at 4:31 am (utc) on Sep 27, 2011]