I love how flexible it is. I wanted to download each article to a file so I could copy those back and forth between devices. The man pages gave me everything I needed to write a simple plugin to do this, and it was well worth taking the time to learn.

Now I have the ability to do completely crazy and arbitrary things to my feeds before reading them! Well, I'm probably not going to do anything with that, but it's nice to know I can 😀