I see the value in using xml for simple markup and standardized entities/references but the flexibility makes navigating whole documents more cumbersome. I think that using it inline is a good idea, but above the paragraph level I don’t see the benefit of using it at all. Even in the supremely consistent world of open doc xml, parsing is a bear of a task. For something like this requiring a fraction the complexity, it should either force more internal structure— XML markup in json fields representing ingredients lists, etc— or just decide it’s for presentation only and go with HTML or rtf.

I probably also have a different perspective on both of these topics than most. I’ve dove a lot of automated document work, and also was a chef so I’ve got a more structured, less prosaic approach to recipes.