Are you ready for some cleanliness? Apparently, some people are, and they’re willing to let everyone know when their favorite NFL team’s home stadium isn’t up to their standards. A gambling website, appropriately named Gambling.com, recently paid someone to go through the Yelp reviews for every NFL stadium. (At least we hope they were paid for all that work). Their mission was simple: Find all of the reviews where people complain about the cleanliness of the stadium following a football game. That meant reading hundreds of reviews to find what they describe as “dirty-related phrases.” The revi…