This results in the same conclusion as the elixir formater arrived to:

The consistency over every random project you can open on the internet makes them more readable and easier to understand, simply because everyone formats/writes code in a similar style.

Adobe has some. I know there are others but none off the top of my head.

There are definitely a lot of style plugins that are up to personal taste and I think should stay that way, so I’d suggest looking through the disabled ones that come with Credo as there are some good ones! I particularly like the one that forces you to always pass the :async option to use ExUnit.Case. This way you can be relatively sure that whoever set it did so for a reason and didn’t absent-mindedly choose the default.

Default, not even having a credo file.

Just having something in place gets you 80% there, if not more. You get diminishing returns as you add more, the value it provides starts decreasing after a while, especially in big teams. Checks that are disabled/added because someone that left 3 years ago didn’t quite like it/or thought it was amazing at the time will haunt you later on.

IMO, your miles may vary.