Agree 100%. It also pains me to see or hear of riders who only use the rear brake.
HOWEVER, one major benefit of having the car tire out back is that the rear end won't lock up and slide out anywhere near as easy as the stock Metzler's will do. While not providing the real braking force that one might be expecting, the c/t certainly provides more confidence that when you do make use of it for braking that it won't lock up and slide.
...still waiting for the flamers to inform us about their superior braking techniques, and that they've never worn our their brake pads, and that they get 50,000 miles out of the Metzlers, Avons, and/or Bridgies.