I’m not sure what cron is? And the posts publishing when you schedule them to post are based on how many hits your blog gets? Even on a self-hosted one? That doesn’t make any sense. But again, I have no idea what cron is.
No, import comments was not set when the post was made. I did it after as I had never seen the choice to do so. I’d like to pull in comments from back posts, too, and was hoping this was going to do it.