What the Fallacy?!
The Fallacy Fallacy
The Fallacy
Presuming that because a claim has been poorly argued, or a fallacy has been made, that it is necessarily wrong.
Why it's wrong
It is entirely possible to make a claim that is false yet argue with logical coherency for that claim, just as is possible to make a claim that is true and justify it with various fallacies and poor arguments.
Example
Bob argued that eating vegetables is healthy because 'vegetables are good for you,' which is just circular reasoning. Alice pointed out this logical error, and then smugly concluded that since Bob's argument was bad, eating vegetables must actually be unhealthy.