I have to agree with everything that's been said in here so far. It seems like in a lot of fandoms, if you don't write what people want to see, you get flamed. It's really crazy.
My personal perfered fandom is Yu Yu Hakusho. We have a love/hate relationship. I love the show, but sometimes, I absolutely cannot stand reading it. There's too much Yaoi, and god forbid you try to write Het between Kurama and a truly original OC. That's grounds for flames stating that Kurama belongs with Hiei and no one else, or bashing on your "Mary-Sue" character. I actually stopped writing for a while because I couldn't handle what was going on in the fandom.