Clearly there are advantages to keeping discussions on the discussion page -- particularly from the perspective of tracking the history of the development of policy-like documents.
It's not easy (or appropriate?) to regulate something like wiki "etiquette" but also see the need to encourage transparent practice.
- I suggest that we consider including a subsection in the guideline for workgroups document on "preferred" communication channels; and
- In cases where discussion or ideas are located in spaces other than the relevant discussion tab, we could request that links to these discussions should be inserted on the discussion page with the proviso that only discussions (and relevant links -- eg a link to a post on the discussion list) will be taken into account for re-drafting and revisions.
Most WikiEducators would do their best to work within these communication guidelines.