My attitude toward punctuation is that it ought to be as conventional as possible. The game of golf would lose a good deal if croquet mallets and billiard cues were allowed on the putting green. You ought to be able to show that you can do it a good deal better than anyone else with the regular tools before you have a license to bring in your own improvements.
If a writer stops observing he is finished. But he does not have to observe consciously nor think how it will be useful. Perhaps that would be true at the beginning. But later everything he sees goes into the great reserve of things he knows or has seen.
I write description in longhand because that's hardest for me and you're closer to the paper when you work by hand, but I use the typewriter for dialogue because people speak like a typewriter works.
Though there is one part of writing that is solid and you do it no harm by talking about it, the other is fragile, and if you talk about it, the structure cracks and you have nothing.