The kind of flaming that Damo was referring to was a personal information war where two posters kept on posting personal information about each other one after another to flame the other. It's a very disgusting thing to watch how low the human mind goes.
It is the only time I've ever seen Damo intervene to stop a flame war. Incessant harrassment of another posters, or two posters incessantly harrassing each other, in an extreme way (like threatening them, saying disgusting things about family members, or posting personal information) is what I believe he is referring to.
I may call Dixie an idiot everytime I see him, but I don't hound him just to do it, nor do I threaten or try to intimidate him.