I mean, going out on this adventure, I highly doubt that Sora would think of, or even care, about writing down his adventures in a journal, and even if he did, it'd be only sensible to let Jiminy write it all down, as he's the one who's job is to do that, as someone else here previously mentioned. He's got enough to worry about as it is, I'd think.
Meanwhile, Terra, Aqua, and Ven are all being trained to be full-fledged Keyblade Masters, and serious roles come with serious responsibilities, journal-writing probably being one of those. After all, a Keyblade Master could be seen as an official- of the entire existing universe. That's a pretty big deal, and just as documents are stored and filed in any other regular job, Keyblade Masters owe it to everyone else to write down their experiences in certain worlds. But that's just what I think.
It's great and exciting to be a member of a community that does such wonderful united projects as these, and I can't wait for the final product! A congrats to all the talented voices involved ^^
I rather like the dream eaters, even the good ones. Sure, some of them are cute (and others are a little ridiculous xD) But a few, like that goat, actually look kind of awesome~
I really don't care what worlds they bring (Hunchback of Notre Dame makes me happy enough <3). What I'm really curious about is the plot, and what Sora will find out when it comes to Aqua, Ven, Terra, Roxas, Namine, Xion...