WalletHub is a social network where people can share information about credit cards and personal finance. The company has a logo that features the letter W, in white, on a green background. Not so fast, says Major League Baseball. In a classic jocks-versus-nerds standoff, the baseball guys claim that the WalletHub logo looks too much like the W logos trademarked by the Washington Nationals and by the Chicago Cubs. People might get confused! As the Washington Post reports, there are lots of other companies that use W in their logos, like Walgreens, W hotels, and Wilson sporting goods. But they're not getting hassled by Major League Baseball.