I'm sorry you've been disregarded for so long. I believe this content creator may upload for the revenue, not the notoriety. If you're still interested in learning WorldEdit I've been using "WE" on my servers since 2013, and I'd recommend https://www.youtube.com/watch?v=1bY-pOYhzVU for a starting place.

Take your time trying these commands to make things. Once you've got the basics down you'll be able to look at most Minecraft builds and re-create them with ease. When you struggle watch a video specific to what you're trying to do (ie: landscape, trees, schematics, and etc).

I hope this has been helpful!