Well, perhaps slash is a more nebulous term anymore thanks to shows like Queer as Folk and Torchwood. I think I'll posit that as an element to the article. For the article I was only including m/m slash. And chan seems to be underaged, not necessarily a child and an adult, though I think that's what people find most controversial. I've read a couple of fics that I considered chan because both characters were underaged, and wikipedia seems to agree with that. But I think what most people are looking for warnings in regards to chan is the child/adult stories.

Thanks for your input!