I assure you, this is not a troll post.
From the point of view of circuit theory, a diode IS a nonlinear resistor. Period.
You can read, for example, Chua, Desoer and Kuh, "Linear and nonlinear circuits". Top level authors and respected university level textbook.
I can go even further: a transistor is a resistor. It is a nonlinear, multi terminal resistor. And I guess this notion would encounter even more... resistance than the diode one. (I was kind of surprised when I first heard about it, but then when you reason about it it becomes clear why it is so - if we neglect parasitic effects).
As I said before I just wanted to see how widespread this notion is (even with a small population sample).
For example, in this other forum (or whatever it is called) it was argued that you can't use a multimeter measure the resistance of an LED because "it is not a resistor", while in fact the incapability to return a value is that at the small testing current used by the DMM either the voltage had to exceed the compliance of the current source, or the resistance to measure would be out of range.