I knew it, too bad I was late to show that I thought so beforehand, so now I can't confirm that I knew it before.
Anyone that is seemed intelligent and then they try to spark up a debate (on the internet) and include many stereotypes (like you said with the British and their teeth), is most likely a troll.
Though after they admit being a troll, they could just be trying to hide the fact that they're a dumbforget.
I don't understand why someone would try to be a troll.