I've already disabled the show achievement in notification upon login, in the Character Config > User Interface category.

Is there a way to just silence these notifications? I don't care about achievements and I don't want it shoved in my face every time I log in, and every time I change zones.

I don't mind seeing the achievement completed notification, but stop nagging me about other achievements near completion! They are incomplete because I don't care about them! Stop shoving that thing in my face!

...calm....calm...okay.

There must be an option somewhere I'm missing. Please give me a hint.