Player banned-Game won?

I know I got the win, but I'm curious why the player was banned. I've played this same player several times before. The player was ga1022, and the game number was 3288960. I'm just curious what exactly happened.

http://www.playtheimmortalgame.com/comhub/removedplayers.php

If you look at the list you'll see about 9 players with names that are variations on qt1022.