Obviously. But we're talking about modifying the existing text, not rewriting it. How often do you have a chance to redo a whole project with completely different implementation and/or completely changed requirements? In my experience, most of the programming work is about adding new chapters to the existing text, and editing the existing text in some areas to make it easier to reason about. In other words, it's either extending the existing functionality, or refactoring it. It's not about rewriting the whole thing.

I would be happy to know, how experienced are you with actually writing creative works, working with a text, working on editing it, and so on? Again, I'm not 100% sure if literate programming would be exactly the same, but if it is similar to creative writing, then - I stand by this point - personal style of writing is not a problem. For two reasons:

- it's trivial to adjust your writing to an existing style when doing light editing and small extensions

- it doesn't matter if different stories in an anthology are written in different styles (actually, you buy anthologies because of different styles), so big extensions and rewrites in a different style are also ok