1) Hosing the registry is not the big issue. The issue is that distributed config with centralised UI >> centralised config. On OSX, if I want to reset an App t

1) Hosing the registry is not the big issue. The issue is that distributed config with centralised UI >> centralised config. On OSX, if I want to reset an App to factory I delete a .plist and maybe an application support folder (always in the same place). I never had to reinstall a single application in 11 years of using OSX. Moving to a different mac? Migration support just does a file based copy of your apps, plist files and support folders and everything is exactly the same as bevore. Want to copy an app without config? Just copy the .app file. These are all things that registry + complex program folders with write access make impossible.