It's the internet. Every team has fans that do that after a loss. The Seahawks usually just have more reason to do so, as not only do they receive a large number of penalties, but their opposing teams receive on average 50% fewer penalties when they play the Seahawks. The Seahawks earn their own penalties, of that I have no doubt. It is more than a little suspicious though that every other team in the league supposedly plays tighter and cleaner games, only against the Seahawks.