Reading this thread something very basic comes to my mind: during previous years the target group for such HowTos has changed a bit. When we talked about "new users" or "poor immigrants" in former times we talked about users who had some basic knowledge from their Windows, some even knew what a prompt is. Additionally there were printed manuals in the distribution boxes and lots of people were used to buy and actually read books like "Linux in a nutshell" or others.
Todays immigrants have nothing like that and are not used to read anything before using the software (they may start reading in special cases later). Learning by doing is the new buzz word. On top of that modern Windows is changing its character away from a computer operating system to a smartphone desktop. Consequently we have more and more users who do not know anything about such things like "what is a device" (related to Linux). Is it time to rethink documentation to adjust to these changes?
Take this very simple chapter about dumping an iso on a USB device. For good reasons there is a repeated warning about the danger of destroying data or even the whole system on the harddisk. Ok, now the user is already above 190 heartbeats/s. Then you tell him to use "dmesg" to find out the correct device. Huh? How is he supposed to use dmesg, or rather "what is this 'dmesg'"? After he took these two hurdles (including the one where he has to understand who 'root' is and how he becomes this 'root') he will be confronted with a list of messages where he has no clue about one single line of it.
Having simple GUIs for that is one part of the answer (where we need a more detailed description of how to use it). The other part is to make explanations of using the beauty of the CLI more newbie-friendly.
While I have a picture in my brain how to improve the chapter I used as example, I'm also thinking about a general improvement in the wiki:
1. Create a section for basic explanations and HowTos, where short pages give the reader a basic knowledge, example "How and why to become root".
2. Whenever such a basic knowledge is needed in a normal HowTo or doc, link to that basic page.
2.a. At the top of a HowTo/Doc give a list of "Required knowledge for this HowTo" and give the links to the related pages. (like in Ubuntu wiki).