The slider sets the amount of jargon that is generated. You can also add your own custom words to the mix.
This app has been called "one of the great achievements of human thought".
Synergy does not collect any identifying information. If you have enabled crash reporting for all apps on your iOS device, the developer will receive anonymous crash reports to help improve the stability of the app. No specific information (such as custom words) are read or stored off of the device.