I had been using critic markup for editorial questions and copy editing, but with one eye on the calendar, I wanted to test the pdf workflow before we had a complete draft with all critic markup resolved.
To my surprise, when we used pandoc to lay out the text with a LaTex book structure, it recognized the critic markup and formatted it in the resulting pdf! Comments default, appropriately, to a screaming magenta that could have been taken from a 1990s GIS palette. (Anyone who forgets to run their automated process to find and resolve critic markup will have a hard time missing these.)
Pandoc has always been a major reason to love markdown's simplicity. Now it's one more reason to consider the combination of markdown plus critic markup.