In 1998—Seinfeld's last year—New York magazine sat down with Julia Louis-Dreyfus to discuss her now-iconic role as Elaine Benes. While Elaine certainly had a reputation for being quirky (and yes, slightly un-datable), what Louis-Dreyfus had to say wasn't exactly complementary...
Elaine is totally desperate.
A woman with Elaine-like qualities is no good. Neither is the man who wants to date her.
Elaine isn't such a great example of the single woman.
Showcasing a "real" representation of a woman would be boring. (Well, at least in the context of Seinfeld.)
It would appear, however, that Julia Louis-Dreyfus is kind of amazing at dating herself:
Here's the entire New York magazine piece, titled Single (Not that there's anything wrong with that!).