Because of drag/drop refactoring and the detail in the page journal, they have to track the history of every paragraph, which requires UI for interacting with individual paragraphs. You can't have just a big old textbox for the whole page and do things as we always have (maybe you can get close with the right diff algorithm).

So to edit a paragraph in the current UI you have to double click to get an edit box, then click to insert the cursor in the right spot. Adding a new paragraph requires a few clicks. Adding a new page and getting to that first edit box requires too many clicks.

Drag/drop as the primary mouse interaction also makes it hard to copy/paste text in and out of the wiki.

It's painful if you're used to orgmode.

But like I said, these are just UI gripes. You can see how they fall out of the fundamental design of the system, but I think focused client design could optimize editing and make it more familiar if that was a goal.

I started playing with it last night. It looks like the was a significant fork a few months back that separates the client from the server. Conceivably, you could take the client and figure out how to build a different UI.