I would analyze the concept using economics: a skill is an antiskill if its opportunity cost is (obviously) higher than the benefit you receive by performing it. Clearly, the evaluation is context/resource dependant, there might be bias that prevents you from knowing that the antiskill is lowering your overall utility, or even preventing you to act under such knowledge, and that’s exactly were the concept become useful.
I would analyze the concept using economics: a skill is an antiskill if its opportunity cost is (obviously) higher than the benefit you receive by performing it.
Clearly, the evaluation is context/resource dependant, there might be bias that prevents you from knowing that the antiskill is lowering your overall utility, or even preventing you to act under such knowledge, and that’s exactly were the concept become useful.