Welcome to the forums!
From what I've read the problem is very real. Have you considered paying to get the bolt replaced as preventative maitenance. Apparently the issue is the hardening on the bolt, the revised bold doesnt have the tendency to fail. It would probably cost less than taking the hit on selling the car.
Regardless. I would phone up your local vw dealer and have them check the serVice record on your car. Who knows, maybe the bolt already failed on the previous owner. In that case you would be set because your car would have the revised bolt.
Anyways good luck and keep dubbin'