New
#21
Personally, I get a huge rush out of finally understanding any underlying OS mechanism which has seemed mysterious and "magic" for a long time. Everyone is different, of course, and I find the code and the architecture far more fascinating than the "skinning" and customisation ... who cares what the start button looks like! The interesting part is how it "knows" to light up when you hover over it with the mouse pointer
A bit of both, and I think both are important. Formal education has a way of providing structure which may otherwise be lacking for all but the most disciplined individuals (I'm not anywhere near that group, sadly). After-hours study done out of personal interest is what (eventually) distinguishes a real expert from the hordes of university graduates who are only beginning their journey.
I don't actually consider myself "taught". Learning is an ongoing process, and it's the whole point of the ex3rcise.