They can, though I guess it depends on what the user is actually trying to do when they remove a program. I'd say the user wants to free up disk space and to no

They can, though I guess it depends on what the user is actually trying to do when they remove a program. I'd say the user wants to free up disk space and to not have the app start up on boot or run in the background consuming resources. Deleting the .app does this while on Windows, the uninstaller is the only way I know how this would be done. The fact that the app might leave some documents and configs behind seems inconsequential. If you delete Word, you wouldn't want it to wipe out your documents with it for example. The fact that some configs remain in system dirs doesn't really matter when they take up no space.