Isn't that what I'm already doing? I assume that the author believes that he's right often enough to argue his position(s), but feels dejected without being proven wrong at the end of the argument.

But there's another important point here: the answer to the "am I really right?" question isn't always clear at the start of every argument.

Unless you believe there's room for (dis)proving your position, or getting some nuance on a topic [1], it's not a debate or an argument - it's a lecture. And lectures depend on other social dynamics which don't apply here.

[1] For example, maybe there are other reasons behind the position that the person can't express easily, or maybe you're actually arguing about different things.