Actually there was that problem I had with the Indian medicine man but that's another story.
The stock hinges are pretty thick to begin with.
If you told me that the hinge came loose from the decklid, yea then I'd say join the club.
I think that the construction of the hinge can let the decklid move enough to chip the edges normally. Gary Hall always said that "you" need to convert to a pin lock (that he sells) to eliminate that.
The studs on the anti-sway bars are just MF's. They are very easy to snap off when disassembling and I think as a result get stessed, or work hardened and proned to failure.
They are something that I worry about all the time when driving the car. The Pantera is an extremely stable car but not with a disconnected 'bar'.
Personally I consider the studs one of the weaknesses of the chassis design as a result.
What broke on the hangers, the straps? If you consider the fact that the strap rubber is just recycled tires and the fact that seven years is about the age limit for a tire before they dry rot, I could envision a scenario where they break, yes.
The polyurethane hangers many not even be as good.