Might be worth noting in the title that this is from 2000.

TL;DR version: The habits are for users of text editors, not for the editors themselves. They are: 1. move around quickly, 2. don't type things twice, 3. fix errors quickly, 4. work effectively with groups of files, 5. provide easy use of tools outside the text editor, 6. understand and work with the structure of your text, 7. make a habit of improving your use of your text editor.

Unsurprisingly, Moolenaar (author of Vim) uses Vim for his examples, but I don't think this is primarily a propaganda exercise. Most of what he says could be applied to, say, emacs with only superficial changes.