The quality of our adaptors varies significantly, because a) we tend to focus more of our time on certain adaptors (the ones we’re using right now) and b) some adaptors have only ever had one “minimal” release, or haven’t been maintained for a long time
In adaptor docs, I’d love to add some kind of badge or certificate or 
to our best quality, best maintained, most valuable adaptors. Those that exhibit best practice in source code implementation and API design.
This helps users to understand where our best practice can be found, and may set expectations about how good their experience with the adaptor might be
I often find myself wanting to point to an adaptor to say “do it like this”. Having a core label/flag on the docs makes this easier.