Why does there need to be a conflict...?
My edit probably violates the point you are making, but I'm doing it for a reason and begging your indulgence. And that reason is: In my current professional work, I teach adults technical topics. Some of what I teach seeks to convert them to a new view and away from a traditional view. I also facilitate meetings at the front end of uncertain processes, and thus am in the role of helping people focus on what is important in the face of many competing influences.
In both cases, I have learned that everyone being merely agreeable with each other ("nice") does not necessarily change any views or cause any enlightenment. Most people need a reason to question their own position. I have not observed that friendly and peaceful meetings arrive at the correct solution to a complex problem any more efficiently than contentious meetings (that, of course, enforce mutual respect and avoid personal attacks). Sharp disagreements force us to defend our position, and that may give us a reason to question that opinion. Many people will seem to be fighting to submission, but are actually being persuaded along the way, perhaps without even realizing it until later. I know that's true with me.
The one thing that we must be true to, however, is basing our arguments on data and evidence. Whether that evidence is subjective or objective doesn't matter, but the reliability of the observation--in a scientific sense--does. That's where this forum should be scrupulous, but it should be scrupulous by example, and not lapse into fallacies such as an appeal to authority. I've never yet seen Floyd Toole, for example, tell anyone that something is true just because he's really smart. He has expressed opinions, but his language makes it clear what is opinion and what is a scientific conclusion, and how those two attributes are related. He references arguments in his book that show data. He describes the results of scientific analysis and observation as the basis for his arguments. That should be an example for all of us.
So, sharply expressed disagreement isn't the problem, and to some extent it is necessary to persuade people of anything. The problem will be expressing a lack of respect for those who are most likely merely deluded or misinformed.
Some of the people who come here are trolls here only to disrupt rather than learn, and some may come to persuade but in the end are themselves persuaded. The tricky part is that it is hard to tell them apart at first.
The appreciation of the view from the top is directly proportional to the difficulty of the climb. Conclusions reached after contention stick. Appeal to authority only lasts until the next authority comes along.
Rick "who obviously doesn't agree with the 'never take a position' school of facilitation" Denney