Doesn't do anything. Isn't needed. Core WordPress handling of Pings is oh-so-fine!
Originally, I forked this Plugin from another Plugin. That other Plugin, while released under GPL, required users to register and sign up for an email newsletter just to be able to use the Plugin. So, I forked it and removed all of the registration/email subscription code. Essentially, I forked the Plugin to prove a point, rather than to improve the code.
I did the same thing for a few other Plugins, for the same reason. When I originally released them, I just ripped out the registration/email subscription code, and re-released them. Recently, I have completely re-written all of those Plugins, except for this one. I was able to improve upon the code and functionality for the other Plugins, but not for this one. So, I'm simply updating this Plugin, and releasing it without functionality, and an explanation for why it is not needed.