I'm not going to provide the example because I'm not here to start a flamewar over someone being an overly aggressive user.
However, in the case that another user goes in and starts making edits to an accepted answer what should we do? We don't really have a method to directly contact the user and ask them what their reason was.
Please note, this is separate from this. My specific situation is someone thought they were being helpful but didn't bother reading all of the information and then without comment made edits to an accepted answer. I was not asked if I wanted to accept the edits, so I went back and edited it again and added why their edit was unnecessary in the comments.