I agree with almost all of your post, particularly your point about personal attacks and insults. I try my best to remain civil and if a poster starts insulting me and launching personal attacks, I put them on ignore. There's really good reasons to do this other than keeping your blood pressure down. First, fame wars kill threads. Nobody wants to read screen after screen of two people insulting each other. Second, once you start attacking a person, your chance of convincing them you're right drops to zero. If you really want to hit these people where it hurts, ignore them.I was watching something on tv and there was a bit on that if one wants to effectively talk to others, usually about politics, do it without the emotions. I thought about that for a minute and that really makes sense. If you can discuss any subject (Especially politics and religion) by inserting facts and discussions of observations, do it without anger and name calling.
Can posters here manage to discuss based on facts without being emotional, playing the victim and just basically losing it?
In other words can posters be the adults in the room?
In my opinion:
A good poster says what s/he means and means what s/he says.
A good poster can do that without the use of ad hominem or personal insult though negative adjectives and adverbs may be used to make the point. Calling out rhetoric, behavior, concepts as wrong, unacceptable, even evil, is far different than attacking a person's character or person.
A good poster can articulate and explain a concept or issue in his/her own words. At times a well chosen link supporting their argument can be effective, but should not take the place of their own point of view and argument. Those who cannot make a coherent case for their point of view but just spout the assigned talking points of the week or month come across as not only clueless, but usually come across as ignorant and/or mean spirited. Those who don't make their own argument but but post link after link after link or who copy and paste cherry picked phrases not only come across as ignorant and/or mean spirited, but are boring as the dickens.
A good poster can discuss the issue with all pros and cons and doesn't dig up a lot of unrelated old bones to use in lieu of discussing the actual issue.
And I think a good poster knows what the topic is and stays on it as much as reasonable. He/she is not dragged off course by the 'professional' (probably paid) people who show up on every thread with the explicit goal of derailing it, changing the subject, twisting it into something else. For example, by page four of this thread, nobody was discussing the thread topic any more but were off on something entirely different. That is no accident when it happens.
I love to read well written posts but many of us do not have great language skills. I think people sometimes try to substitute quantity for quality. Most people do not read more than 100 words or so. I know it really feels good to fully express yourself or offer a detailed rebuttal, however don't expect people to take the time to read 5 screens of text.
I know. And one of my worst faults is being too wordy in my posts. It comes from being an old competitive debater and coach. It is difficult for me not to try to frame my argument in a cohesive and complete structure and hopefully difficult for the other to refute.
I do agree that you are always civil and capable of making your own argument for things which I probably disagree with more than I agree. But I do appreciate that you have a rationale for what you argue, and you have my complete respect. I read your posts.

(You have also caused me to think through my own arguments and sometimes do some additional research. And that too I appreciate.)