Jason Turbow has a really nice take on this. Turbow wrote one of the most fun baseball books I've ever read, "The Baseball Codes," it's a great read on the history of the unwritten rules and his website is constantly updating on issues pertaining to the codes. http://thebaseballcodes.com/2016/03/10/bryce-harper-hates-baseballs-unwritten-rules-like-it-or-not-hes-also-their-standard-bearer/ "There are strong feelings on both sides of the divide—traditionalists who want no part of emotion on the diamond, and those who decry the Code as ancient hokum, unfit for the modern game. As is usually the case, the truth lies someplace in between. Celebrations are here to stay, but disrespect is as reviled now as it’s ever been. Trouble is, it’s sometimes difficult to distinguish between the two, which is where much of the problem lies. Baseball is an ever-changing game, as are its unwritten rules. The sport is still feeling its way through this, but with guys like Harper and Fernandez at the helm, it should all work out just fine."