I don't think the parent poster was saying that the learning itself was bad.
I think the gold plating they're referring to is a form of over-correcting. The learning itself is good, and correcting prior issues is good. But over-correcting and over-learning can be problematic and can lead to gold plating.
I don't think there's any easy indication of the line between the right-amount of correction and over-correction, but I don't think it's unreasonable to state that one can over-correct based on prior experiences.
I think the gold plating they're referring to is a form of over-correcting. The learning itself is good, and correcting prior issues is good. But over-correcting and over-learning can be problematic and can lead to gold plating.
I don't think there's any easy indication of the line between the right-amount of correction and over-correction, but I don't think it's unreasonable to state that one can over-correct based on prior experiences.