[rcdwealth]

It is so. Emacs contains the full Emacs manual, non-fragmented, compact and complete, including the full Org mode manual, non-fragmented. It is self-documenting program. Users can learn what is built-in feature and what exists before starting to use extensions.

If you try to do too much at once, of course, you are prone to give up as you started on a too high gradient.

[Jeff_Brown]

I think I'm a pretty adept emacs user, and I've relied at least ten times more on crappy informal documentation in blogs, StackOverflow etc. than on the real stuff.

[JHonaker]

I do that too, but out of habit from other pursuits rather than a real necessity. Recently, I've found myself going to Emacs and packages' internal help first, and I usually find what I'm looking for. Despite me spending several years not believing it, it's really good documentation for the most part.