Very nice idea and good said. We should avoid discussing on the “Talk page”. Adding notes should be OK there.
But maybe it’s better to let the “Talk Page” open for its intended use for other users. Maybe not all people like to post in a forum. We could also add another wiki-page “WikiProject_Thailand_Drafts” and link to it in the top of the main page.
For me it would be OK to delete it. It has a “history-function”, so everyone can read what was written down, even when it is deleted.