I have to say in my opinion I don't think this is good advice for a developer unless you don't care about being fired, which honestly you shouldn't since being

I have to say in my opinion I don't think this is good advice for a developer unless you don't care about being fired, which honestly you shouldn't since being a developer is awesome right now. Any employee should treat their ability to quit as a loaded weapon. Don't pull it out unless you are going to use it.