By contrast, the WordPress team thought that hyphens looked better, so blog posts published on their tool would look more like example.com/2005/04/my-great-cookie-recipe.
Underscores, Optimization & Arms Races
Anil Dash
3.5K20

The reason I liked (and still like) hyphens was they are easier to type, not needing the shift key like underscores. 😀