I'm beginning to think that maybe he did work for MI5 and all his posts were a British Intelligence Op to boost American support for the Iraq Invasion. Tony Blair seriously wanted to get rid of Saddam Hussein and I believe some of the reasons for Saddam's departure are still secret.
MadIvan registered in 1998.
Here is his profile page. I know his given name and perhaps will see if I can locate him. However, he is not a British agent, in my opinion, unless Tony Blair assigned one to Free Republic prior to the end of the Clinton administration.