So true! It's a tough disease to catch but totally incurable. Once you have the bug, you start to pick-up code smell in anything that isn't functional. You see

So true! It's a tough disease to catch but totally incurable. Once you have the bug, you start to pick-up code smell in anything that isn't functional. You see code and ask, "Why are we touching that?, Why are we holding onto this?" Being able to think in a functional style encourages you to throw away as much code as possible and hang-on to as few crufty elements of state as are minimally required. It also makes you very anti-OOPS and hesitant to define "classes," since these violate the first principles of functional.