I'm not sure you're right about all the slash writers. I tend to think a lot of fan writers are slashing everyone because its different, trendy, a bit naughty. I was amazed at the number of Chekov/Sulu pairings I saw after ST09 because I don't think they even spoke to each other in the whole movie. I tend to think differently about the old school K/S slashers. I've had some discussions with them. While they failed to totally 'convert' me I can see their point. If you study TOS closely I can see why some people can see the slash there. Kirk and Spock are very close. Shatner has a certain type of body language/smile that you could interpret as flirting with Spock. That scene in TMP where they're holding hands... I personally quite like Spock/Uhura. However, I just think it makes Spock a less interesting character. In TOS he was a lonely tormented, oppressed soul. In STID he's got a hot girl and everything's looking good for him (aside from the death of his mother and his entire planet I suppose ).