It very often reduces it, and also often has unintended consequences (e.g. prohibition era in the US). In the context of the parent's point, that when "the open

It very often reduces it, and also often has unintended consequences (e.g. prohibition era in the US). In the context of the parent's point, that when "the open method is banned, people will start using layers of indirection", it's not hard to think of some unintended consequences that could end up worse than the original problem.