This reader also has trouble with that source whose author appears not to know the distinction between his word, "rebuffs," and something whose meaning is closer to the intent (as inferred from context): "rebutts" or possibly even "refutes."

Worse, that article lacks another word, "aptitude," which describes at attribute that's almost certainly variable... and relevant.

UPDATE: shamed by the typo in "distinction" that I failed to notice during initial proofreading; now corrected. Aaaaargh!