The thing is, for probably a good majority of Rubocops rules, the consistency has nothing to do with correctness, it's consistency for the sake of consistency.

The thing is, for probably a good majority of Rubocops rules, the consistency has nothing to do with correctness, it's consistency for the sake of consistency. Whether you use ' or " for strings, or the %d shorthand or fully formed arrays in Ruby has nothing to do with the correctness of your code. When these are trivial, it's not such a big deal - perhaps a bit of friction for developers, but not in a way that slows them down significantly. Rubocop does occasionally get into style rules that can change what your code is trying to communicate though, and those can often have negative effects.