What do you do when your team wins the Super Bowl? You would usually jump in a celebratory "hooray" and then go on with your business.
The New York Post sees things differently. It wants the world to know that their city won the Super Bowl tonight. How did they do that? They covered their entire front page in New York Giants.
It's not my place to judge any Web site on how they design their front page, but this just seems a little excessive. At least they have pride in their team. That's the most important thing.