I couldn't agree more. It's like learning boxing from a book...it doesn't mean a damn thing until someone tries to hit you.
The majority of what I learned in 3D was from trying different things. Even if what I did didn't work that taught me something also.
I hate it when people ask "What is the best way to do [fill in the blank]" or "will this work if I do this?". These are questions from lazy people who don't want to put in the time to try it themselves. Questions are fine to get you started or point you in the right direction but there is no substitute for actually doing the work. I can't count the number of times I was trying something and came across a new technique/tool totally unrelated to what I started out trying to do. As far as I am concerned that is one of the coolest parts of the learning process, the discovery.
If you want to learn something, research it and try to do it, don't just ask someone how they do it to take the shortcut. You will wind up loosing the discovery of other things along the way. That blog post summed it up pretty well IMHO, thanks for posting it Scott.
What Jo said above is so true.