You can’t discuss a matter effectively unless you really understand what the other side is saying.
Mischaracterizing the other position is extremely common in theological disagreements. I try very hard to avoid it here by quoting people directly, linking to context, and reading and contemplating an argument before I reply to it. I try even harder to avoid speculating about the motives of those with whom I disagree, since these are irrelevant to the truth or error of a person’s viewpoint.
But even these precautions cannot guarantee I have really heard and comprehended what the other side is trying to communicate.