We are building out a bunch of tools around the exercises. One is a "favorites/playlist" type feature. I think that's near "copy" you mentioned.

Again, this will come with tools. I built the original concept for the site out of frustration around SEO, and the general people taking for 10mins and not getting to the point. However, I see your point and as I mentioned above, we are working on more guided features and building search into the site to get people to the content faster.

The site started built on wikimedia but didn't blend well with clean ascetic, but that's pretty much the reason for the name and it stuck. I think one day we might build wiki like functions into.