As Valentine’s Day approaches at Stanford, some students may be gearing up for first dates — not with people they met on Tinder or Hinge, but with matches from a service called Date Drop, designed by Stanford graduate student Henry Weng. Date Drop pairs students with potential dates once per week based on their responses to a questionnaire.A Stanford whiz kid is trying to disrupt an established industry from his Palo Alto dorm? Stop me if you’ve heard this one before! But young adults are deeply