I’ve seen your posts for a long time and it was clear how much you wanted to get admitted to Stanford. Frankly, I was a little surprised you didn’t. I enjoyed reading your take on the process; you make some great points.
But let me say this: you are too hard on yourself. For one thing, you are obviously not boring. But mostly, you are leaving out of one of the most important reasons you did not get accepted. In a word, it’s “RANDOMNESS”. First of all, you have 47,000 applicants for 2000 positions. Secondly, and perhaps even more important, Stanford - and every selective school - is trying to construct a class consisting of a wide variety of students. They want students of different backgrounds, different interests, different approaches to life etc. etc. So in other words, there isn’t a single “formula” or “something Stanford is looking for”. You were more than qualified, and in another year or with another constellation of random factors you could well have been admitted. Though your guidelines are valid, ultimately a successful application to Stanford (unless you are an Intel winner, child of a very major donor, or a recruited athlete) is going to be part lottery winner, part dumb luck.
By the way, you’re going to be fine.