Great post! I tend to put "gearfaggotry" at the level of a total beginner though, not in the middle. MIght have to add a "Z" axis to the graph to incorporate luminosity's spentoomuch factor.
Like most of my life, my personal curve is a little backwards. I was handed an old Kodak Duo 620 when I was 11. I was a 'one exposure per motive' photographer until after I graduated High School, got a job and could afford more film. Somehow I slid backwards to the 'my phone has a digicam' about ten years ago and all my pictures looked pretty. Now I'm somewhere on the 'exposure'/'auto mode' slope waiting to fall into the 'HDR hole' Not sure I'm looking forward to that