You can increase he time wait before a new thread for users. Also if you know the users you can block Ips as most of hem use VPS for posing.
m107 Reviewed by m107 on . Automatic Posters Problem Does anyone know of an effective way to block automatic posters? A lot of members are using them in my forum and that is causing server problems. I run vBulletin 4.2. I don't allow them in my forum btw, I ban members who I catch using them, but there's always new ones popping out. Thanks. Rating: 5