Alfred app autocompletion doesn't work with symlinks (aliases in OS X lingo).
Steps to reproduce:
(Note: I have done this only with the command line, but I guess OS X's "make an alias" will work)
Create an alias to /Applications of a .app folder (using the command line utility "ln" or Finder). Type that app's name.
Expected result: the app comes up in the dropdown.
Actual result: the app doesn't come up in the dropdown.
Alfred v2.0.8 (212)
OS X 10.8.5
MBA 2013