PM5311: The name-a-fallacy fallacy

I wrote:
It's not the same thing as the fallacy-fallacy. The fallacy-fallacy is an argument of the form "A is an argument for B. A is fallacious. Therefore, B is false". That's not exactly what the "name-the-fallacy fallacy" is (or the catchy name fallacy, as someone at LessWrong calls it). The name-a-fallacy-fallacy is asserting "Your argument commits the X fallacy" without giving sufficient justification for that. So in the name-a-fallacy-fallacy, your assertion that my argument is fallacious is unjustified. Whereas, in the fallacy-fallacy, your claim that I am committing a fallacy could be completely justified and correct. See the difference?
and:
You might say its a "non sequitur", but it's much more effective than most, because it's the name of a logical fallacy, it sounds logical to many people, whereas most non sequiturs will just sound stupid. And, it's not even necessarily false. They might well be right that your logical argument contains fallacy X, but if it's not bleedingly obvious, then if they haven't provided any explanation of how/why, it's still not right as an argument.
and:
Let me put it this way. Alice produces some elaborate complicated many step argument to some conclusion. Bob says "special pleading!". Let's suppose, that somewhere in Alice's fifty pages of dense prose, special pleading does in fact occur. So what Bob has said, is actually true, and relevant. However, Bob still is not arguing correctly, because he is not pointing to where in Alice's fifty pages of dense prose the special pleading actually occurs. To be arguing correctly, he needs to point out, at which exact step of Alice's argument does the alleged fallacy occur, etc. So this fallacy is not necessarily a non sequitur, because it is not necessarily irrelevant, but it is still in some sense fallacious even when it is in fact relevant. The fallaciousness lies not in necessarily being false or irrelevant, but in failing to provide enough information to demonstrate to a reasonable independent observer that what one has said actually is true and relevant, even if it does in fact so happen to be.
The name-a-fallacy fallacy refers to the fallacy in which, rather than engaging with their opponent's arguments in detail, a person responds with the mention of a logical fallacy, without any explanation of how the fallacy actually applies to the argument at hand.
This fallacy is particularly common among atheists, although not exclusive to them. Here is an example of the fallacy in action:
Christian: Everything that begins to exist, must have a cause. The universe began to exist, therefore the universe must have a cause. And the cause of the universe, we call "God".
Atheist: That's special pleading.
The Christian may or may not be guilty of special pleading; but the atheist is definitely guilty of the name-a-fallacy fallacy, because they have made no effort to actually engage with the Christian's argument, or explain how it constitutes special pleading (if it in fact does). Knowledge of logical fallacies can be a useful tool, but they are not magical talismans which will defeat any argument simply by being mentioned; and yet, practitioners of the name-a-fallacy seem to think that they are exactly that.
In order to legitimately accuse your opponent of a logical fallacy, there are three necessary elements:
  1. It is necessary to provide a clear definition of what the fallacy is. Many logical fallacies are defined in different ways by different people, and it is impossible to answer the subsequent two questions without a clear definition being adopted.
  2. Reason to believe that the fallacy is actually a fallacy. A form of argument does not become fallacious merely by having the label "fallacy" attached to it; anyone who wishes to label something fallacious, needs to provide a clear and convincing argument that what they claim to be fallacious in fact actually is. Even if it is agreed that some instances of a particular type of argument are clearly fallacious, it does not automatically follow that all arguments of that type are necessarily fallacious; to hold so would be to potentially commit the fallacy of overgeneralization.
  3. A clear and convincing explanation of why your opponent's argument is in fact an instance of that fallacy. One line answers have no place in serious debate.
This fallacy is also known as the "Catchy Fallacy Name Fallacy".[1]
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