that doesn't explain why @jye son got 10x as many yes. It explains 10% more not 1000% more.
I think what happens is that the presence and knowledge of the supply/demand leads to the boys-side to aim high (which magnifies the effect of the modest imbalance).
--the top 25% of girls (based on personality, appearance, wealth, yichus, best connections, whatever) get 60% of the dates
--the next 25% of girls get 25% of the dates
--the next 50% of girls get the remaining 15% of dates
Numbers (%) used are examples for the purpose of illustration.