If hackers were on this site, they wouldn't only make the duel unable to join. Chances are they would delete most of this site. Second of all, there is probably an update on the duel. Plus think of this site to be ran on an ftp server connected to iweb, you do not have to be logged on it edit. He might log on after to test it tho...
"you know you play minecraft too much when you notice the birds chirping"