K/S fics are super-rare and I'm very picky when it comes to fanfics.
I think their rarity is a pretty good indicator that a lot of people who get their fangirl on over the ship don't actually have a good understanding of the canon (whether it be the anime or the manga or the rebuild). This is also supported by the fact that what fics -do- exist are often very bad. XD The good ones are hard to find, I think I've only read two or three ever that I really enjoyed.