Maybe the disconnect between single men and women could be resolved by a survey that asks a random sampling of men and women when they think it would be appropriate to approach or be approached by a potential SO, and finding the discrepancies. For example, if it is found that most "decent" men think it's rude to approach a woman at location X, but most "decent" women would prefer to be approached at location X, the men could be told to change their behavior. Maybe someone can suggest this to OkCupid (if it hasn't already been done); it seems they do a lot of statistical research already.