I don’t think I understand what you mean. With strict/opinionated mode I mean that it should ignore personal stylistic choices like underscored digits and the number of lines between functions and force a consistent elixir style.
It would mean having two formatter codepaths, one that is more forgiving and one that just formats the code exactly like elixir wants it so it would increase the technical debt and add complexity.
With “consistent” do you mean “consistent with the rest of that projects code” or “consistent with all elixir projects code”?
shrug We use credo to detect numbers without underscores so we can always fall back to that. Besides, most of the code is text, not digits. 
