Hi Paul, it has been a long time. I understand your argument for fully open and transparent education, but personal experience with adult learners from around the world tells me that it would not be welcomed. I say that because it is difficult to get most online learners to communicate their ideas and experiences to their cohort even when no one else is watching or listening. I also note that different cultures have difficulty communicating in public and a truly open forum would certainly inhibit them from responding in an honest manner.
In an open system I would suspect that most learners would not express their true feelings if they knew anyone could read them. Even in cohort learning, where individuals move through together, it takes a lot of time to build the trust necessary to communicate ones ideas or to openly challenge someone else's postings.
I can enviage a boss looking in on one of his employee's to see how he/she is responding in the course. Forgive me for the "big brother" fear, but I believe learners will be less inclined to exchange ideas, challenge others. It will stifle learning, not enhance learning.