It is an ethically and rhetorically sound strategy to avoid taking an overconfident tone in one’s argumentative writing because:
An overconfident tone is one that is too sure about its position on a subject without making allowance for a divergent possibility. Nobody likes to learn from a person who is a know-it-all and one who makes no room for corrections.
For, this reason, writers should endeavor to avoid sounding so overconfident. While they should be confident about their views, they should never downplay those of others.
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