[neverartful]

The funny thing is that even for devs who don't want to declare their types will still have think about them to some extent. Even if it's correcting run-time errors indicating that some function or property doesn't exist for type 'X'. Plus, they get to guess at the types that are expected for various function calls in their own projects. Oh sure, you can add comments that document it right above/below the function, but do you remember to keep those up to date while you're in the middle of refactoring?