Zooey Deschanel's character in New Girl is probably the clearest example of this right now, as that entire show is based around how quirky and eccentric and, as a result, lovable, Zooey's character (I think her name is "Eyeface") is. Except she's not so much "eccentric" as much as she is "bad at being alive and functioning socially, in the present." One of her main conflicts in the pilot is that she has a date at a fancy restaurant, but doesn't know what to wear so she puts on overalls! Classic Eyeface! And one of the male characters on the show goes goofy-eyed and clearly starts falling in love with her instead of, say, yelling, "You're 27 years old, how do you not know how to dress and function yet? Get your shit together."
"Sometimes I poop in toasters! I'm incorrigible."
It needs to stop because guys shouldn't live their lives expecting a woman like this to exist. No guy should be waiting around for a quirky, blue-haired, horn-rimmed-glasses-wearing chick to show up and fix his entire life, because what woman would want to deal with that expectation and level of pressure?
It also needs to stop because I don't want wide-eyed gals to think they need to act like vapid morons to attract guys. Because I'm an average, twenty-something male in 2011 America, I've developed a pop-culture induced soft spot for pale chicks with giant eyes and bangs.
You! You did this to me!