The logic was... well to open it up for community edits. The old process was very closed. There was no access to the source, and no one could help out. Putting it in the Wiki opens things up for community involvement in editing.
That said, you are definitely correct in your observations.
I'm working on things to help with filling that new hole I created. On Monday.. so two days ago, I rolled out a new Extension from PediaPress for the Wiki that allows you to generate PDFs on the fly based on "Collections". I will be creating collections of each chapter of the DG, and one overall. These collections can be turned into a PDF in a couple clicks... I have added one DG collection already, and will add more as soon as I can. The first one is the first chapter, and is linked from the first page of the first chapter:
http://wiki.services.openoffice.org/wik ... irst_Steps
The PDF link is bottom left of the article frame above the PDL statement (I have to think of a better way to present this link... maybe with a standard PDF icon as well as the text?). Click the link, then click the Load Collection link on the left under the heading "My Collection". This will take you to the Collection management page. You can click Download PDF, and in a minute or so you will have a PDF of the first chapter.
You (as in any register user on the Wiki) are free to build your own custom collections as well.
Now that the PDF export is working , we will be able to provide a PDF of the whole book, and of individual chapters.
The next step is to work with PediaPress and get the ODT export working (it will work in the same way, only instead of clicking Download PDF, you will only need to click Download ODT). I will have a really early alpha of that installed soon, and hope to take that live in the coming weeks/months (depends on a lot of things... software on server etc.).
This step will allow people to have it in ODT if they want, and also allow us to produce a nice looking book with a proper index and TOC.
The single HTML per chapter thing was a horrible maintenance nightmare, and I don't think we will be returning to that.... at least I hope not.
For online searching I added a Custom Google search to the Documentation pages:
http://wiki.services.openoffice.org/wiki/Documentation (just above the Searching and Downloading title)
This does a Google search through only the Documentation sub pages, so you can relatively quickly search the DG.
The hierarchy of the DG in the Wiki is less that optimal. It is a literal implementation of the source material, and no time was taken to rewrite any portions to make it more logical for online use. That needs to be worked on... we need to look at each Wiki page in the DG and determine is it in the right spot? were the sub sections split off logically? does it need to be merged into a higher or lower level? etc etc. all while keeping in mind that editing a long page in a Wiki is a messy affair so we want to limit the length of the pages where possible (ie we do not want a whole chapter in a single Wiki page).
This is all of course open to suggestions and improvements. The document is open source. We all have a part in it, not just me (which was the case before I ported it to the Wiki).