In early October Facebook made some changes to how other sites (like HappyTC) can send updates to the “Friend Feed” etc. As a result certain HappyTC actions that used to produce a Facebook update no longer do.
We have looked into the changes required to use Facebook’s new method, and frankly at the moment it isn’t worth the effort. As well, Facebook will probably change the method again anyway. Those Facebook updates are not a critical part of HappyTC, so we trust that most HappyTC/Facebook users will not even notice.