If we're being fair, docx (or rather, tools that write docx files) offers a lot of tooling out of the box that is useful for proofreaders, editors, and typesett

If we're being fair, docx (or rather, tools that write docx files) offers a lot of tooling out of the box that is useful for proofreaders, editors, and typesetters. Revision history, suggestions, and non-printing comments are all incredibly useful.