Good Afternoon Cooky.
Thank you for your inquiry. When a member is banned, an admin blocks this members IP address from accesing the site. If you suspect any member using more than one username or is abusing our ranking system, kindly bring it to our attention and we will be happy to investigate on your behalf.
Thank you again for your inquiry and your contributions within the AGORACOM community.
Kind Regards,
AGORACOM