I get the point, but it starts to become annoying when people repeatedly propose deletion of pages nobody with an IQ above room temperature would consider deleting.
The danger of using an AfD as a tool for improving an article is that it forces people to improve it or remove what already exists, which discourages people from adding articles if they can't add an extensive article (or even if they can).
An AfD should not get filed unless the article itself has negative value to Wikipedia, and Wikipedia would be better off with the article gone. There do exist such articles, but that should be a pretty high bar.
