insulting someone’s intelligence right off the bat, whether playfully-intentioned or not, is neither coy nor funny; it’s a turn-off. just fyi. while i agree that “humor is subjective” (and i think actually i have a pretty good sense of humor), but you might want to make sure any future attempts have a bit more universal appeal.
also: no matter how engaging your “opener” is, it means crap if the other person is simply not attracted to you. you could use any one of those generic, lame opening lines, and if a girl found you attractive, she’d reply. i hate to sound shallow, but those are the basic rules of attraction.
also: admitting to reading those cheesy internet dating how-tos? kind of pathetic.