Comment 18 for bug 61530

I think removing the shutdown sound is not that big of a problem - Mac OS X hasn't got one and instead of being let down by the absence of a sound, I'm glad it shuts down as fast as possible. If we already have machines shutting down within a few seconds of selecting the option, there aren't much solutions left.

Although my personal opinion doesn't count for anything, I predict that most users will welcome fast shutdown and not care too much about removing the shutdown sound.