I have recently started using a new word processor when writing. One of the features that I like is that it shows the edits that have been made over time. Unfortunately, when that document is saved as a text file, all of the edits show up as well. That means words that were altered show up twice - once in its original form and once in the altered form. The result is an unreadable mess which you don't see from the program, but shows up when posted.
I recently posted a story and the initial posting included all of those edits. It read like hell. It wasn't the story I wrote, but an artifact of the word processing program. The post has been corrected.
Hopefully, it will not occur again.