QuickTopic (http://quicktopic.com/) (abbreviated as QT) is a website that provides individual and private message threads. It has become a common way of handling private communications in games because adding someone to the group is as easy as giving them a link to the thread, and everyone can participate without the hassle of sending PMs to several players. QuickTopic threads are secure in that is generally not possible for anyone to access the QuickTopic thread without receiving a link to it.
It is not permitted to give out QuickTopic links that pertain to an ongoing game.
You must sign up for QuickTopic in order to create threads.
With the goal of keeping MafiaScum self-contained, private topics have been implemented to copy and even surpass QuickTopic functionality.