This is cool in general, but I feel like it disrupts the flow of the writing/presentation. There is something fundamentally poetic about the structure and rhythm of the Tractatus. Perhaps that is why it has held so much appeal. In any case I feel like indentation or some other nesting convention found in software formatting would do a better job of visually representing the logical structure of the book without disrupting the flow.
I personally think the structure of the book is it's biggest weakness. No matter how poetic, it really doesn't support communicating it's material very well. At least not to normal people.
That said, I actually did a redesign of the book (https://i.imgur.com/QFyuIsd.jpg) years ago using indentation and lines as guides. I reckon that's the best way to improve the experience in book form without fundamentally altering the text itself.
If I were to do the same for web, I'd also make sure the reader always sees the statements from upper layers to get the full picture of the context in which the current statement is said.
