I agree with most of Christie's points, though I've seen quite a few new users make similar points and get welcomed in much more easily, Christie provoked this response: http://www.quora.com/Lucretia-M-Pruitt/Posts/Welcome-to-Quor...

I think she's very insightful, and as a community we have a lot to learn from her experience, at least testing the edge cases and failure modes she's tripped through.