You are right. If you don't follow most of those rules, you are not doing pure FP. My interest on them was because I was writing production code that felt proce

You are right. If you don't follow most of those rules, you are not doing pure FP. My interest on them was because I was writing production code that felt procedural. The rules are there so you can practice with purpose. Once you go into production code, you can discard them, but with knowledge that it will not be because your OOP skills take over, but conscious decisions.