The leaders and the moderators are the biggest fans of the topic. They care about its development and quality, so they have access to the topic preferences. Each one of the fans can apply for a leader or moderator. The current leader must approve the application except when the applying fan has higher rating than the leader with the highest rating.

Rights:
The leaders and the moderators can edit most of the resources shared in the topic. They receive notifications when a complaint is sent. The leader can use some extra features - he can delete all the inappropriate resources, he can change the background of the topic and to accept or reject the applications for the position of a leader or moderator.