One of the things that I appreciate most about the open source community is the sense of collaboration that comes with sharing your work.
Case in point: This morning, I received the following tweet from someone who wanted to contribute to Tipsy Social Icons.
@tommcfarlin Hey Tom, I want to patch up Tipsy Social Icons (add filters to Icons) and then use your plugin with my next Themeforest theme..
— Nauris Pūķis (@pyronaur) February 20, 2013
Sure, all plugins in the WordPress Plugins Repository are open source by nature, but GitHub makes collaboration that much easier, so I was happy to oblige.