So many plug-in authors doesn't care explain to the ordinary user how to use their plug in. No examples of shortcodes is such an example or just surmising that the user has a lot of knowledge about the workings of WP beforehand. Not so this developer. He understands that not everyone is a programmer or has knowledge of the WP API. And so he takes time to explain to us mere mortals how his plug i works step-by-step. Hats off for that.