A lot of the "negatives" that have been presented here have been shot down, so I am very skeptical that the negative spoken of in the post I am replying to is any exception to this.
A good stock trader has to put their emotions in the background, and one's ego is a part of that emotional structure that gets in the way of making good trading decisions.
Every one of us should ask ourselves, "is what I am doing being motivated by my ego, or is it really good sense".