I think you are going about this all the wrong way. You seem to think that most people who use positive words are just putting up a facade and using these words

I think you are going about this all the wrong way. You seem to think that most people who use positive words are just putting up a facade and using these words for the sake of using them. Consider the co-worker who acknowledges hard work you do, and appreciates you for your effort. This acknowledgement gives this you a sense of accomplishment, which in turn makes you feel happier and better. Consider the neighbor who offers help when he notices you have a problem with your car, or gives you advice that helps you solve your problem easier. Consider the person who recognizes that you have a disability or health defect, and chooses to help you and provide you with positive reinforcement to help you focus on progress and feel better about your situation. I think the article, and the notion of "positive people," is more than just throwing a word around. It's about people who add weight and meaning to their words through thoughtful consideration and genuine compassion.