Why are all Craft files executable? I just downloaded the latest version of Craft (2.3.2617) and extracted the zip to check it out. Every file has execute permissions turned on for all users. Is there any reason for this?
Folders need to be executable for Apache/PHP to be able to open them and read their contents.

I'm guessing it's more of a a case of our build script being overly aggressive and setting the execute bit on files.

From what I can tell, though, setting the execute bit on a PHP script is effectively pointless.