Versioning is where the Microsoft world, and probably all graphical word processors suck big-time.
The world of pain I go through when I have to collaborate with partners in government or defence, sending back and forth word files from various word versions and tracking comments and changes leaves me losing the will to live.
Oh if we would only have the GitHub GUI for Office files!
Word itself provides a compare function that works very well, and there are alternative tools that also provide versioning functionality that can be combined with various document management tools, essentially providing GitHub for Word files (see, e.g., Interwoven iManage, etc.).
Unless you work with different Word versions, and different people across different organisations and send Word documents back and forth, trying to keep a workflow going...
Also commenting sucks, in some versions replies add a comment (which renumbers them all..), and in the next version the comment numbers are not displayed. It's a mess really.
Add-ons like iManage are relatively useless if you work with multiple orgs.
