Even the word .....argument.....is open to interpretation.   Do we mean , the explanation of , or defence a particular pov, or do we mean as in a volatile exchange.    The first is, IMO, healthy, but the second achieves nothing, except perhaps demonstrating the argumentative party cannot achieve the former.         Of course, anyone can say they have such an such opinion, and decline to back it up with reason and evidence, but they can hardly expect others to give it much consideration, as nothing was given to consider!