I think you are making a mistake by censoring messages to AP-CALC. I find now that I keep looking over my shoulder when I write messages, wondering if you will approve, or whether I should reword my messages. You are, in a sense, my involuntary co-author. I think you would play a much more positive role by URGING participants to discuss the topics you think are most important, rather than forcing us to do this.
In a message I sent, but which you censored, I tried to raise the issue of what I perceive to be the dumbing down of the calculus and other math curriculum as a function of the rise of the number of students of non-European ancestry who are attending universities. I believe there is a real case to be made here which identifies a liberal paternalism behind the oversimplification of mathematics in K-12 and which harms minority students and all students, in the long run.
Perhaps you disagree and perhaps you are correct in doing so. But, if so, that is your view. Not mine. Censorship stifles free exchange and I'm afraid you are censoring ideas-- not just formal expression which might be offensive to some.
Because of this, after this message, I intend to withdraw from this discussion. You may then pursue your pro-reform agenda for the AP Calculus exam, without further criticisms from me.
Sincerely, David Klein Dept. of Mathematics Calif. State University, Northridge