Thank you for this insightful series of articles.
I think we have lost many some points in diagrams. When the content is copied and pasted into Gotoknow.
Would it be possible to upload the original "documents" (.doc ?) to Gototknow, so that we can see the diagrams?
An alternative is perhaps to re-edit the documents and use "save as ... html document" to produce another copy (with .htm). The content of .htm file with html markups (funny things in <...> angle brackets) can be copied and pasted into Gotoknow textbox. Hopefully this would then display as it looks in Microsoft Word.
If OpenOffice/LibreOffice is used, exporting the documents as '.pdf' may be a better way to keep the presentation format.
Hope this helps ;-)