Wiki is easy to use, in the same way that a bicycle is easy to use. Once you've learned it you don't have to think about it. But it takes a while to learn, and there is no easy shortcut to learning how to ride.
# Related sites
Here are some notes on ease of use, in wiki and other projects.
draft of work for GPACW 2015 addressing issues of ease of use - intuitive - and its relation to learning and augmentation.
for GPACW 2015 website 
Just as the first wiki changed how people write, our new wiki will change how people work. By pushing steadily on two fundamental ideas we have once again uncovered a simpler and more powerful internet.