Man, I already thought A Villain's Life was cool, and sort of sweet, but now I care. Doctor Cataclysm, please be okay!
Yeah, I'm still geeking out about it. It'll pass. In the mean time, a small insight:
Most media has a fairly clear division between real/non-real. Movies have a screen, books have their pages. Even if there's a framing device, in most cases it's still pretty easy to tell, just from the format, that it's fiction. Yes, that book may claim to be a journal, but its still professionally printed with the publishers name in the front.
This kind of fiction, this fictional blogging, has a little less of that. It's still obviously fictional--there are no superheroes, no superpowers, no weather machines. But that's only discernable from the content.
In form, this is just another blog. It's framing device is built into the media itself. I tend to dislike frames in books, just because they're not. You can tell, very easily, that the frame is also false, so it tends to interfere with my suspension of disbelief. Your mileage may vary.
But this is cool. I get information about Doctor Cataclysm in exactly the way I would if he was real. 'tis a trick, rather like a well done game story, that allows for stronger audience/character attachement.
That's my story, and I'm sticking to it.