Good job not answering the question and generally bringing nothing constructive to the thread.
Wait...so telling her that just because you're a legacy, you're not guaranteed a bid is not constructive? Sorry. Maybe you should go read her question again, and try to do it with some reading comprehension skills this time.
Maybe you should re-read her question. It was whether a Chi O legacy invited to prefs is guaranteed a bid. Which, as ccwstc has shown us, is a possibility in some sororities.