As a mod, let me quickly say this. I, too, have issue w/ a policy that says it is ok to say whatever you want about a teacher if it's good, but not ok to say something negative. It's passed off as being tactful, respectful, etc., but, to me, it's plainly hypocritical. However, having said that, DB's points are well made. But, note that the main reason why we can not do it in a public forum, save for legal things, etc. that are already public knowledge, is b/c it is an unfound matter of opinion applicable only to the poster. A teacher who might be horrid to one, might be the enlightening savior to another. As ETP posted, the decision as to whether a teacher is a bad teacher or not is relevant only to the student in question, not the teacher in question.