Agreed! Personalities are indeed fluid. How you act or react to situations in life are often predicated on your life experiences, your environment, and how your were raised. The MBTI can be a useful tool if you used correctly. Using a person's cognitive functions can determine more accurately how they will respond, as they usually have a more fixed value. I too consider myself an INFJ. I don't consider myself special or rare, just different. Actually, I work at being different because I feel that the road less traveled is a better path for me. Believe what you believe. Follow what you feel is the right choice for you. Don't try to dictate what others should, or should not do based on your logic; faulty or otherwise!