[kovidgoyal]

@bowerbird
As I've stated repeatedly, it is not good for a general ebook format because it does not support custom formatting of individual elements. As you stated quite clearly in you last post.

Again, giving control of presentation to the reader software is in general a good thing. Forcing all presentation to be done only by the reader software, is not. It is limiting and short sighted.

@GregS

I agree, for archival purposes, of books that need to be digitized, a lightweight system that has standard structural elements is the way to go. Like you, I think it should be rooted in some sort of system that can be simplified considerably, but that is extensible, to allow for the bells and whistles that authors like to add.