It seems that Vaniver and pnrjulius have assumed that you're having trouble picking good dates. If, instead, you are worried about getting picked (or accepted) for dates, then maybe you're on to something. I'd be interested in knowing whether the majority of people accept dates based on a positive or a negative selection process. It may need to be broken down by gender.

(I have a hypothesis that I won't share yet, in case it influences results)