Sram GXP bottom brackets also feel like planned obsolescence to me, although they're probably unintentionally badly designed.
The bearing on 1 side wears our after a few 100km and they still kept making gxp cranks for a long time.
Update on my post #7230 on the top of this page.
I bought a bb thread tap and could fortunately save the frame. I had to cut away quite some material... The previous owner probably forced a bb in there the wrong way around.
Bb cups sit nice and flush now, happy days.
Thats amazing!!