The framework exists so modules are easier to write, less redondant and more powerful. Module writers and users should read this to have a better understanding of the extra abilities linuxconf modules may have.
Linuxconf can tell you what has to be started, or restarted and this even if you change some configuration without Linuxconf. Mostly, it has features to warrant that what you have configured is effectively performing. Here are some screen shots.
Linuxconf modules have 3 different user interfaces generally for free (the code is written once). You can test a live demo of the HTML interface and you can see a screen shot of the GUI and text interface.
If you are designing a large package for Linux with numerous options and configuration files, maybe you should read this after all.