As for your statements regarding the tests you've done on D2, & the handles of cheap kitchen knives, I've spoken with Wayne Goddard about this.
His experience tells him that D2, DEPENDING ON THE MANUFACTURER, WILL VARY IN THE AMOUNT OF CHROMIUM, & CAN VERY WELL RUST, especially if polished to a satin, rather than mirror finish.
Handle material of unstabilized natual materials, left in a wet environment long enough, WILL show changes, such as twisting, swelling, and warping. This includes the harder woods as well (desert ironwood, cocobolo. etc.), depending on the length of time submerged.
I have no way of knowing what exactly this knife was subjected to (hell, he couild have used it to open sacks of sulfate of ammonia out in the garage!). but this is the FIRST KNIFE out of this material that has been returned due to ANY defects.
I tend to believe my own studies and testing procedures, as those of Mr. Goddard (who has 35 years experience in this venue).
Harry Jensen