IMO the issue is more with the document format than what people are doing with it. The most recurrent problem I've seen was with text that was deleted at some point appearing instead of the current version.
What I'd really want in the first place is people to care if what they are sharing is in the right format.
When a non technical clients asks a designer to see some early drafts of a site's UI, they will usually receive rendered jpg or png files, not Photoshop or Illustrator files. Most school teachers would be pissed of if students were to turn in home assignments in tex. I find it inconsiderate to send me docx files for documents that are read only on my side, just send me the PDF instead.
