This RBL is maintained by a company from Singapore who is focused in system administration. They use the list for their clients. They list IP addresses for 30 days due to Spam, Worms, Open Relays, Brute-Force Attempts and similar abusive actions.
It is stated on their website that they do not remove IP addresses by request and that the IP's will automatically be removed after 30 days from final abusive action.
Is the information on our site wrong or incomplete? You don't want us to monitor your blacklist? Or do you operate a similar blacklist? We would like to hear from you!