Regarding who the last one was, I don't know. I speculate, but I don't spend much time trying to figure it out. Regarding "the flamer" there always seems to be one, whenever they start out. Perhaps they end up with a fan club of flamer-wannabes who show up to get their attention. And perhaps - this is scary, but I think it happens - other people dislike and are provoked/angered/ frightened by anon flamers so much that they make a decision to become one.

I would still say to read and choose to respond to each post for its own words, whether it's by someone you think is a flamer or not. I don't have to be someone's friend to reply politely, and I don't have to trust them. My response shows what sort of a person I am. In other words, I don't try to be polite because I expect others to be, I try to be polite because I expect ME to be.