Why jockey should not be rubbed on a potentiometer wire?

Rubbing a jockey on a potentiometer wire can introduce unwanted friction and wear, potentially damaging the wire and affecting its resistance. This action may also create inconsistent contact, leading to inaccurate measurements and unstable readings. Additionally, it can generate heat and noise, further compromising the performance of the potentiometer. Instead, a gentle touch is recommended to ensure reliable and precise adjustments.