KBC was used to MOCK people who were uncomfortable to post their real thoughts under their original usernames. Also, I don't remember saying anything that negative when I used that SN.
Hahahaha...I recall one GCer who had THREE usernames just for that reason. It's funny because her identity was eventually found out.
I don't think most people know about it though. Mods definitely. But when she started posting as her 3rd identity I think most people thought she was just another GCer.