Since versions 1-5 of MS-DOS only came with the Edlin line-based editor, but were released on the IBM PC and compatibles, which had screen-based user I/O, my feeling is that most users wouldn't have bothered with it. Microsoft's MS-DOS Editor (
edit.com) and IBM's E, didn't exist until the 1990s.
My question is, what were the most popular text editors during the 1980s era? Did DOS programmers gravitate toward certain editors over others?