Tell that to your mirror. I've specified the problem with crowd noise acoustics unique to Gillette compared with other NFL stadiums. It's all a matter of degree. Again, of course -- Gillette can get extremely loud during playoff games which would be even louder in a conventionally designed building. Regular-season games in Foxboro would be just as loud as regular-season games in Buffalo, Cleveland or Tampa given similar stadium design. It's the building, not the crowd.
I've been to every single game in Gillette since it opened. I've also been to NFL games in Pittsburgh, Tampa, Chicago, Seattle, San Diego, Buffalo, Houston, Phoenix, Minnesota, Jacksonville, New Jersey, Baltimore and D.C. I know what I'm talking about. It's not the crowd, it's the stadium. The building makes all the difference