Reputation System
http://help.forumotion.com/frequently-asked-questions-f5/reputation-system-evaluation-thanks-button-t38434.htm
Point System
http://help.forumotion.com/frequently-asked-questions-f5/the-points-system-t38437.htm
Login popup
http://help.forumotion.com/frequently-asked-questions-f5/login-pop-up-t38544.htm
flood control
http://help.forumotion.com/frequently-asked-questions-f5/flood-control-t38545.htm