I fell upon Anatol Rapoport‘s rules of constructive argument and debate and found them compelling: How to compose a successful critical commentary: You should attempt to re-express your target’s position so clearly, vividly, and fairly that your target says, “Thanks, I wish I’d thought of putting it that way.” You should list any points of agreement (especially if they are not matters of general or widespread agreement). You should mention anything you have learned from your target. Only then are you permitted…