Thank you so much for donating. It is always appreciated!
This update has been rewritten.
The code to follow users has now been added in via a template post render listener. The code is added to the register_process template. Although normally code such as this wouldn't be executed in this way, it does resolve a couple of bugs and also enables any other registration system (e.g. Twitter, Steam auth) to also be included in the follow process without any extra code being written.
This update also includes the ability to specify users who should automatically follow your new user.