If I remember correctly, what Nan said was the original intentions. Crossovers, since they deal with L&C, are welcome in the fanfic section. Other show fic would be better served on message boards devoted to that show. We have occasionally, however, talked about other fandoms fics in the Off Topic folder.

"You need me. You wouldn't be much of a hero without a villain. And you do love being the hero, don't you. The cheering children, the swooning women, you love it so much, it's made you my most reliable accomplice." -- Lex Luthor to Superman, Question Authority, Justice League Unlimited