Fun to read and finger on the pulse. With a focus on chemistry articles (my passion for the moment) it is clear that an author needs to write them the way they choose need to to write them to communicate the nature of their work - the purpose, the process, the execution, the conclusions, the future etc. Publishers already provide us templates to write into and that brings some structure and not too constraining (but a LOT of work sometimes...I recently gave up on submitting an article to one journal since I simply couldn't figure out how to navigate their Word template (and I am NOT naive around computers...).

With the inherent freedom required for writing an article some structure needs to be layered to facilitate searching and "semanticising". This can be automated and semi-automated but a way for authors to assist the process, and tweak the results of automated analysis is necessary. This is the vision of the markup system we are building.. http://www.chemspider.com/blog/chemistry-document-markup-and-free-access-structure-based-searching-of-publications.html

The same system could be applied to blog posts, wiki-pages, ONS pages. Don't remove the freedom and layer on too much structure up front but allow semantic touchpoints it to be recovered later by others..primarily the author in my opinion, but then others also as they see value. This is the value of the WikiProfessionals direction too.