I noticed this because part of my postflight imaging task for my lab systems is to show all files, but in Mavericks, the com.apple.finder defaults domain is case sensitive. So if you have com.apple.Finder you’ll need to edit it in such a workflow. So, for example, if you need to see hidden files, use the following commands:
defaults write com.apple.finder AppleShowAllFiles -boolean true
killall Finder
The problem with seeing hidden files is that you see a lot of stuff that you really probably don’t want to see. So to get back to a state where you don’t have to see all of the invisible files, use the following commands:
defaults delete com.apple.finder AppleShowAllFiles
killall Finder