If you add something to your wishlist you will receive a notification if that product goes on sale, that is part of the wishlist feature. If you don't want to receive sale information on any item, then you will need to remove it from your wishlist.

That is part of the wishlist feature, its not spam.  You can easily stop getting sale information on an item you chose to be interested in by removing it from your wishlist.

The checking no to special coupons, promotions, etc is regarding newsletter promotions we send out, that is different from a item you put into your wishlist when that vendor puts it on sale so that box on your profile being set to NO, has nothing to do with items you choose on your wishlist.

Regards