to add
I am not here to insult just sharing my experience from when I play.
Also the whole "a bad person will be bad no matter how they level" is flawed concept. If a bad player is willing to learn, leveling the old school way is the best thing for him since he learns the timing of his skills.
Take a real life example, you can read up on how to make a cake and decorate it all you want. But you will never really learn if yiu do not physically learn how to do it. If simply reading stuff makes people "good" at their jobs we would all be rich since we would master any sorta of job.