I’m glad to hear that they are planning to put more effort in to their documentation. The Arch Linux wiki is highly technically detailed, which is great, but can often be very intimidating to new users. I hope Canonical focuses on filling this documentation gap to better serve the new user to Linux.
I’ve read little to no ubuntu documentation (aside from stuff like installation and very basic troubleshooting). Have you noticed any improvement to it? I think this post is 2 years old so I’d assume there’d be at least a bit of little change.
I had a look at the Ubuntu (deb) packaging docs for a project recently and they're in a shocking state. They rely on tools and commands that have been removed from their respective projects (e.g. bzr/brz deb helper functionality), and to get around that suggest firing up a 5 year old version of Ubuntu in a container.