"BE" wrote in message
Of course you toss knives in point first and eventually they saw
through the plastic joint(s) in the waffle pattern and the larger hole is
born.

I believe these are designed this way to help shorten the overall life of
the dishwasher.

Beats me, We recently replaced a 20 you Kitchen Aid with the original tray
and no holes. Maybe you need a better brand of dw? Put the knives in point
up?