The problem is, you despise the fanbase that you would be appealing to, and you know that if you wrote the story, you would end up with something that appeals to them, but which you personally hate.
1) Would you do it?
If you did it:
2) Would you use your own name or a pseudonym?
3) In your interviews, would you try to hide the fact that you hate the story and your fanbase, or would you admit it freely?
I keep having ideas for stories that I realize would appeal to either the Twilight/Jonas Brothers fans or the Harlequin Romance readers. While I don't really feel disdain for the majority of members of these groups, they're not really groups that I want to write for.