A couple more ideas:
I like the feature that allows auto-generated topics to be unlisted unless somebody comments on them. It seems like a good idea to have there be a setting that allows that to be set as the default, rather than having to change it every time you make a post.
It would also rock if you could set the defaults for whether posts automatically get a topic created on a category by category basis. (ie, I want new posts in WP in my “announcements” category to default to having a Discourse topic created for them, but the ones in my “white papers” category to default to no new topic in Discourse.)