It's not, at least anymore. I went and deleted the entire contents of my wishlist yesterday because I'm tired of the emails telling me when something goes on sale in my wishlist. I didn't get those before the MP changes and I don't want them now, but now there seems to be no way of turning off that feature, other than not having anything in your wishlist.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi