I really like lists.
Language.
I think there's 50, but I kept getting interrupted whilst I was counting.
Because you ship them
Because Tom Felton is pretty damn hot
Because Emma Watson is pretty damn hot
Because you don't know enough about other characters
Because canon is boring
Because you can test your writing ability by coming up with a believable plot
Because you can whore yourself out by writing a rubbish story for a million reviews
Because you want to see what all of the fuss is about
Because you want to chuck your deuces up to JK Rowling
Because you hate the epilogue
Because you hate Ron
Because you hate Astoria
Because you can take all of your Mary-Sues for a test run
Because you can take all of your OCs for a test run
Because there is always a lot of UST
Because you can write steamy lemons
Because you can write plot less short stories
Because you can write plot less long stories
Because you can see just how OOC you can make Malfoy and Hermione
Because you don't have to bother with spelling or grammar
Because Malfoy's a 'bad boy'
Because they provide plenty of self-insertion opportunities
Because you're bored
Because you're lonely
Because you've wrote a story for every other ship in every other fandom available
Because you can
Because someone told you that you can't
Because someone told you that you shouldn't
Because writing clichés is so fun
Because if you do it 'properly' there's hardly any work involved
Because there is already so many plots to choose from
Because they're the only stories you can ever find
Because of random, annoying plot bunnies
Because you can use them to mock Dramione shippers
Because you can use them for a bit of Weasley!bashing
Because you can use them for a bit of Dumbledore!bashing
Because you can tell the world that Hermione is Voldemort's daughter
Because you can generally just screw with the entire storyline
Because you can make the Malfoy's nice. Or misunderstood
Because you can show the other Dramione shippers how it's done
Because you've recently been dumped and want to restore your faith in love
Because you've recently gotten a divorce and want to restore your faith in love
Because the person you like is too stupid to notice you and you want to restore your faith in love
Because you are attempting to learn English through the language of love, (which is universal)
Because you're trying to prove you're twice as good as Jane Austen
Because someone paid you to write it
Because it's on your list of "Things To Do Before You Die"
Because you need to satisfy your addiction
Because you're a sadistic person who likes feeling pain
Because the voices in your head told you too
Any other list ideas you'd like to see?
Just review me ideas:)