We continue to suffer under one poor choice I (Ward) made early in the project: drag refactoring. This was a design goal. I had hoped that a carelessly organized set of pages could be drag and drop refactored into a better design.
This new wiki can handle data and perform calculations. (Say, for totaling up costs, or sustainability scores.) You can also use it to put together your own simple calculator (or even a complex one). That allows it to make quick but powerful comparisons – say, on costs, or on sustainability "externalities" (hidden costs and benefits).