@Bucephalus:
I'm actually sort of surprised there's so few 30+ year olds. I know quite a few middle-aged people who dig Shonen.
Oh I bet there are a few. Maybe some people just don't feel the need for or even like answering the question. Who knows? Not everyone posts on every thread, lol.
And FTR, a good story is a good story, no matter what rules someone came up with for who it is supposed to appeal to. (Ok grammar police–I see my dangling preposition there--sue me, lol) There are numerous examples of this being true for all sorts of media besides shonen manga. It's just as annoying as it is to have the entire contents of TRU divided firmly into pink and blue sections, and never the 'twain shall meet. Why not just say a certain starting age and up, instead?
But w/e--I have a summer cold and feel cranky, so doan lissen do be.