Should we treat 1st and 3rd parties differently?

Sorry - I tried to send this the day after our last call, but the presentation exceeded the mailing list's 512k file limit.  Here is a resend with a link instead.

Once again on our call last week I saw the majority of our time spent wading through what I believe to be unnecessary complexity.  We spent the lion share of the call talking about things such as purging old data, personalization, party transitions (1st to 3rd etc) and general responsibilities of a 3rd party.  I believe all of these either go away or are much simpler if we define DNT as Do Not Cross Track, which I believe allows us to treat 1st and 3rd more similarly.

I would like to try one more time to demonstrate my proposal using a more illustrative presentation.  Please look over the short presentation and answer the question at the end.  Please forgive my powerpoint skills - I know it's ugly -- I am an engineer.  I saved this as a 2003 ppt, but if someone would like it in a different format, please let me know and I will try to accommodate.

Presentation: http://dl.dropbox.com/u/14219750/Should%20DNT%20%3D%20Do%20Not%20Cross%20track.pps

Thanks,
Kevin