Al I agree that there are different grinds that work for different purposes. However I believe that a beginner should learn how to use the grind he has for each different tool and not worry about what is the best grind and as you said most who post here are beyond the beginner, but there are lots of beginners out there reading what we post. Guess a lot of the discussion gets down to semantics and we are just repeating things we have said before.I agree keep things simple for beginners. I reccomend beginners take a basic bowl class and use whatever grind they learned in that class until they get pretty good with it before experimenting with other tools and grinds.
However many of the participants in the forum are past the beginner stage.
The various gouge grinds determines what the tool can be effectively used for.
One of the benefits of local chapters is seeing different people demonstrate. Over time members get exposed to a variety of tools and techniques. Many chapters have workshops and mentoring sessions to provide hands on experience and opportunities to experiment. Over time everyone develops their own preferred tools and techniques.