Put into FAQ:
Will submitted code be licensed under the copyleft Creative Commons Attribution-ShareAlike (CC-BY-SA) license?
I really want to know this!
Since the CC-BY-SA is a copyleft, viral license akin to the GPL, it would be absolutely horrible if an employee (or someone just working on their own non-copylefted (think: BSD Licensed, for instance) stuff) asked for help on Code Review, got a working code snippet, and then their entire work had to, per letter of the law, also fall under the CC-BY-SA.
Honestly, it seems reasonable to believe that pretty much everyone thinks the code snippets they create for the entire Stack Exchange Network is put in the public domain, so why not just do that explicitly? Make the code and suggestions from others usable by anyone, anywhere, at any time for any reason.
In any case, I want official clarification as to what the licensing of snippets is, and this should definitely be prominently displayed in the FAQ and even on every compose page.