I suggest that my subscribers say only what they would if their noses were in punching distance of the readers' fists. IOW, if they wouldn't say it face-to-face, they're asked not to say it on my list. I delete people who cause prolonged disruptions which, given this policy, are very rare. Not sure this could apply in academe, but I do run a list for novelists who are sometimes accused of thought. Jilla