It is irrelevant to the original theme of the post, but it is quite relevant to the subthread that started with two quotes from and about Rand, and you coming to criticize the poster of the second quote. We're way too into that subthread for it to be irrelevant.
>What is the appropriate tone for responding? I believe I was sufficiently polite and civil, and fair in presenting my position. Please help me improve my communication style by pointing out how this was not the case.
That would be relevant if I had accused you that your tone was bad. What I say is completely different: that your tone made me think that you are a pro-Rand person (concerned with objectivity, overuse of logical fallacies, defensive of Rand, etc).
>It predates the internet.
Yes, but most people one meets online discovered it on the internet, often as part of a whole related culture (skeptics, etc.) and use it as a blunt instrument. The laundry list of fallacies wasn't that popular before the internet anyway, not even in philosophical and logician's discourses.