OK, you've made your point quite well and I begin to understand your concerns: if an author has an audience it's quite inappropriate to come and shut down the show.
But the thing is we have the flag tool. So if I really want, I can come and intervene anyway. The status quo just makes the emotional tension bigger that it needs to be and prevents nothing. That's why I propose to give people a way to do what they can do and will do anyway but at least minimize the negative aspect associated with flagging.