I use the addon Leatrix Sounds to find the ID of the annoying sounds in WoW but it can sometimes be a lot of typing and scrolling (and losing track of where in the list I'd got up to). It'd be great to have the two addons working together somehow to copy straight from Leatrix Sound into MuteSoundFile

If there are sounds from Leatrix that you'd like to see as presets in this addon, I'd strongly encourage you to submit a pull request with them included.