When someone suggests an argument is flawed because it uses a specific fallacy, which argumentative technique are they practicing?

The correct argumentative technique being practiced when someone highlights that an argument is flawed due to a specific fallacy is known as "Begging the Question." This technique occurs when a premise in an argument assumes the truth of the conclusion instead of supporting it. In this context, the individual is implicitly asserting that the argument fails because it does not provide valid reasoning or evidence, thereby revealing its reliance on flawed logic.

By identifying the fallacy, they are indicating that the premises provided do not sufficiently support the conclusion, therefore rendering the entire argument question-begging. This is an important aspect of critical thinking and logical analysis, helping to clarify misconceptions and demonstrate the poor structure of the argument in question.