The question in your example for ChilledLime is completely appropriate on Quora. There's nothing preventing a question from soliciting personal viewpoints.
http://www.quora.com/Quora-Question-Policies-and-Guidelines/...
"Poll questions ask individuals for their opinions, preferences, habits, or other data without also asking those individuals how or why.Here are some examples:
Did you vote for McCain or Obama?
What is your favorite color?
What type of laptop do you own?
What is your favorite bar in San Francisco?
How many friends do you have on Facebook?
How often do you brush your teeth?"
The rules are a bit nebulous between poll/survey but generally they are loosely enforced, the main thing that's not allowed are ones where the question offers a set of specific choices and asks for the answerer to choose one.