Like CADad and RTusk40 said if you are a pitcher consider it a blessing but I think you ought to understand what is happening and be able to throw the ball straight if you want to.
If you stand in front of a wall and throw the ball off the wall because of the spin the ball will bounce to one side or the other. If you are throwing a straight ball it will bounce right back at you. An outfielder doesn't want the tail because first of all it's inefficient to throw other than in a straight line and second when the ball hits the turf he wants it to bounce up straight with a reverse rotation.
A pitcher wants movement. Control that movement and velocity becomes less important.