I have been one of the unfortunate SHO owners who have had the crank bolt come loose during operation. I heard a light, clunking rattle and found the crank damper wobbling on the crankshaft. During the removal, inspection and repair, I found the crankshaft to be reduced in diameter from the wear. This required either a new crankshaft, weld repair or shimming. I shimmed.
It is very important that the crank damper bolt be tightened to the required 113-126 lb-ft and that it stay there until you pop it loose again. I was one to use red Loctite on the washer area of the bolt. I didn't want to risk damaging the threads that had already been challenged by the wobbling damper.
For the MTX owners, it is much easier to resist the torque of the bolt installation. With the shifter in 4th and the parking brake on and all four tires on the ground, much torque can be applied. Or with a friend's foot on the brake pedal, you don't even need the tires back on the ground.
For the ATX owners, you have more limited choices. I have formerly used a C-clamp on the damper and let it bump against the large aluminum tab below the crank. I now have a large strap wrench that I will use next time. Whatever the method, you need to properly torque that bolt.