Debating Nested Hierarchies with Evos- A Common Thread

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Earlier today I posted on Andy Schueler not understanding nested hierarchies and not providing anything to support his claim, including failing to provide a valid definition of a nested hierarchy. THAT is exactly how all the other evoTARDs approached it also- Zachriel-> no valid definition of a nested hierarchy. Oleg T-> no valid definition of a nested hierarchy. Even Doug Theobald, who uses nested hierarchy as alleged evidence for macroevolution, fails to provide a valid definition of nested hierarchy.

OTOH each and every time I have provided a valid definition, along with accepted examples, of a nested hierarchy.

So the question is- what are they afraid of? I say they fail to produce said definition because all definitions agree with what I have been saying. And they can't have that...