Not every rule has a reason, some of it is just "because style guide" and if you try to look up the rationale there, you'll find none. Classic example is Perl

Not every rule has a reason, some of it is just "because style guide" and if you try to look up the rationale there, you'll find none. Classic example is Perl style %w(literal arrays) vs ['traditional', 'arrays']. > Prefer `%w` to the literal array syntax when you need an array of strings Which was introduced[1] into the style guide nearly 9 years ago with practically no reasoning. Prefer `%w` because why exactly? [1] https://github.com/rubocop-hq/ruby-style-guide/commit/b27eff1b2ca6ee7502bb0c53afec4f25ae154a19 https://github.com/rubocop-hq/ruby-style-guide/commit/b27eff...