Great post thank you for sharing. This attitude seems is very important online where the feedback loop between conversational parters is often an order of magnitude larger or more then when the conversation takes place in person.
Given person A perceives a insult from B in an online form. A's negative reaction to a perceived insult can grow and take root in the amount of time it takes for B to clarify that no insult was intended. A can experience persisting negative emotions toward B even after it is clear to A on a conscience level that B intended no insult. In person it is often possible to clear these falsely perceived insults more quickly because of the quicker turn around time in the conversation and the high bandwidth communication allowed by the addition of body language and tone of voice.
The harder part in my opinion is communicating to peers the fact they are breaking these rules. In my observations even people who are good at updating on everyday topics have a difficult time updating how they update or changing/discussing their communication methods; many people attach these fundamentally to their definition of themselves and perceive any criticism as an attempt to harm them and react defensively.
Which one if either is do you perceive as more negative/harmful. B says to A.
I think you are wrong on topic T because of X and Y.
I think you are being irrational on topic T because of B and C.
Approach two is more likely to be received negatively, even though approach two helps to correct irrationalities that will often apply equal to many topics not just T, while approach one mainly helps with only topic T. Approach two directly tries to solve the root of the problem, while approach one tries to solve symptoms of the problem. Approach two is preferred in all cases where it is not urgent to come to a conclusion on topic T, when it is thought that person A's reaction will not be to shut down conversation and approach two does not makes it considerably less likely for A to update.
There must be a good way to frame approach two. How about "I think B and C are causing you to come to wrong conclusions on topic T."? Or some other way of trying to push the Bad bits to something A perceives as external. "I think B and C are causing you to communicate poorly on topic T."
Even though this was written by a current Less Wrong poster (hi, pdf23ds!), I don't think it has been posted here: Why and how to debate charitably (pg. 2, comments). (Edit: The original pdf23ds.net site has sadly been lost to entropy – Less Wrong poster MichaelBishop found a repost on commonsenseatheism.com. He also provides this summary version.)
I was linked to this article from a webcomic forum which had a low-key flamewar smouldering in the "Serious Business" section. (I will not link to it here; if you can tell from the description which forum it is, I would thank you not to link it either.) Three things struck me about it:
The list of rules is on pg. 2 - a good example is the rule titled "You cannot read minds":