It is also teaching the baby to cry to get picked up. Don't forget the chapter on common-sense behavior modification. You like to pick up the baby. The baby likes to be picked up by you. If you plan always to run and pick up the baby whenever he cries, maybe nothing is wrong with that.
Most parents lose the desire to do that after the ten thousandth time it happens.
The baby doesn't lose the desire to have it done, however. The baby also learns the world revolves around him and has a hard time later on when he must discover it really doesn't. Obviously, the most effective thing to do is to pick the baby up a lot when it is not crying. Babies and parents both benefit greatly from a lot of cuddling and playing together. I encourage you to do a lot of this when the baby is not crying .