Agreed. One person has problems doesn't mean all do.I guess I missed part one? What are these shortcomings of non zamak razors that you are speaking of? Any razor (zamak, brass, stainless, etc) can be flawed from a design standpoint. But from a material standpoint brass and stainless just work and last almost indefinitely without any special care.
Edit: I found part I. Of course any razor can break if you drop it. That proves nothing. The fact is stainless and brass is just a more durable material in use in a wet environment like a razor. Zamak isn't bad. It's just not as durable as those 2. Not even close. It may last for years but it often doesn't even with good care. If some want a razor they have to baby or paint the threads that's their choice.