Not directly related to curse, but I do believe that some of the sounds in the game should be tweaked.
(The following does not take firework explosions into account)
Some important skills make very loud distinct sounds such as curse, boastful bellow, or that-recall-sound-that-is-on-a-few-other-skills. While some important skill's sounds give very little indication that they went off. (Most notorious being blind)
Not sure if there is a way to do it, but if we could crank up the sound volume on some of the quieter skills or lower the volume on louder skills so that all skills could have a relative consistency this would greatly help an issue like this