Featured Image Reminder came about because some forgetful blogger (me) had a site where featured images were important and he kept publishing blog posts without the featured image being prepared.
When the plugin is installed and activated, and you try to publish a post without a featured image, a dialog box will appear asking if you really want to do that.
Credits
- Inspired by the Publish Confirmation plugin.
- Plugin repository banner includes a photo from Flickr user tiff_ku1, used under Creative Commons licensing