You are advocating the complete abandonment of the principles that underly Wikipedia.
"You can edit this page right now." That's the mantra. That's the key. That's what got us where we are. It's foolish to give up on the thing that made us succeed where other things (Nupedia) failed.
The key underlying principle is making a free encyclopedia available to everyone. "Anyone can edit" is simply a means to an end - it is secondary to the goal of making an encyclopedia.
We should be working to make things better for the readers, not the contributors. Relaxing our rules on using reliable sources would be great for the contributors, but makes the website pretty much useless for the readers.