I was going through lesson 8 and 9 of DL2 (I lost count how many times) recently and had a ton of questions. By chance I started reading Part 2 Lesson 9 wiki yesterday, and it has a surfeit of 455 posts, some dating back to Mar 18. But as I started reading them, I found that many of those questions had been asked by our predecessors, and also answered by others. I think I’ll probably go through the main threads of Lesson 10 - 14 too. At least that’s the plan.
Following the main lesson thread seems to have pretty good signal to noise ratio, at least for me. ( by noise i mean as in things less relevant to me, not that they do not contain valuable information)