Adding more code is a code smell

software would be better if diff tools showed insertions as red and deletions as green

— Steve Losh (@stevelosh) February 5, 2018

This tweet reminds me of another episode of The Bike Shed, in which they said:

• It's a smell that adding more code (green number in a PR) than code that's deleted (red number in a PR) when maintaining (not developing) a project.
  • Because this may indicate that not enough refactoring were made.

-- from 127: Bike Shed: Discovery by The Bike Shed

I always feels happier when deleting code than adding code. Most of the times, less code is always better.