We already do.
Well, to some extent anyway. The
online version of the Command reference has a Comments function, and many of the commands have helpful tips that people have added. You can find it in the Editors Depot: there is a direct link from the left hand menu column. It's called "Commands", under REFERENCES.
The
Unofficial command reference is always a good place to turn if you need help. It frequently has a slightly different "take" on a command from the official version, and having two explanations often make it easier to understand. However it doesn't cover all the new commands.
There are also other versions that people have made. They can all be found under Tutorials - References - Command references.
My final tip is to read the command ref from beginning to end, like a book. Don't try to understand every command, just read it - including the special sections. Similarly the unofficial command ref. Do it again a couple of days later. That will help you know what's in there, which makes the individual bits easier to understand.