I sometimes use OkCupid, a dating/friend-finding site. It works by matching users up based on their answers to a series of questions. But when I search through the set of available questions, the site searches only through the text of the questions I've already answered. How can I search through the text of all the site's questions, including the questions I haven't answered?
I've found a couple of possible solutions. The best one I've found is to search through the set of questions answered by someone who's answered several thousand questions.