judgy von-holier-than-thou

What's the deal with the phrase "reserve judgement?" As soon as I read it, I immediately start judging. I can't help it. It's like when your friend tells you not to look at the hot guy at the next table. What do you do? Of course, whip around as fast as you can to check him out. Anyhow, if someone tells me to reserve judgement, it usually means that I'm already pre-disposed to judge the topic in question, and will likely ignore any efforts to distract me. Or, the topic is truly worthy of derision and they're just bracing me for the worst, trying to butter up what paltry pros that may exist. In any event, it's a superfluous expression, and I'm hereby starting the petition to remove it from our collective phraseology.