I also disagree. I always let it cool down completely on it's own until the little pop-up thingy drops back down (No cheating by removing the weight early). Even then, when I take the jars out, the liquid inside them continues to bubble and boil for another 10-15 minutes.
That's because when the vessel pressure equalizes you are just getting down to the boiling point of water under the pressure of 1 atmosphere.
Don't remove the weight early. The liquid in the jars will be way above the boiling point of 1 atmosphere and the liquid will be basically super-heated and the jar lids won't be able to let pressure escape fast enough and the jars may explode.
If for some reason you can't wait for the pressure to equalize by ambient cooling, run water over the outside of the cooker.
Just don't remove the weight or screw around with it with a wooden spoon, no matter how fun it might be