We are certainly planning on making these sections more comprehensive. This is just the first iteration of this and as we get more feedback and we create the deeper guidance this will certainly grow. The way this is presented right now is "people found this experience frustrating, don't do it." We need to dive more into "these are 2-3 patterns that we know work really well.". A lot of feedback we recieved is that actually a lot of developers want the seed of the guidance first, specific guidance a little later.

I think you hit the nail on the head about anonymous users. It is hard, and there are patterns that we have not fully explored yet such as sign in on add to checkout.