for the fork cylinder rods to bend means they are coming loose from the locknut and or the stop cushions are bad, and the hydraulic pressure is set way too high. (or crap is falling into the area or getting hit. if the pressure relief is set correctly, they should stall out before bending, even if mis adjusted for length..
for the pantograph bending, I automatically blame operators for not retracting the pantograph completely before turning. usually when pulling out of putting something in the racks.
Give a thought to how many pounds torque are on that pantograph when the wheel is in a tight turn, and the corner of the forks are pushing against the building or a rack with 100 thousand pounds sitting on it.
in any case, driving with the pantograph all the way retracted should cut down on the damage.