The fact is, the only way they came from the factory was "swedged" studs. If the rotor has been replaced then there is no "swedge", and I would not add it either. It is just something to be aware of. The poor guy in Australia probably would preferred to cut the "swedge" and easily hammer or press the studs out of his original hubs. I grew up with these cars, and in the beginning rotors were not sold without the hubs and "swedged" studs. There are probably few hubs left original, but it is worth mentioning. There probably is a tool to "swedge them back, but like you, I don't see any advantage.
