Why do so many people hate the new nickelodeon so much?

I've been seeing so many adults, teenagers, older kids, and even younger kids ranting: "The new nickelodeon is crap now!", "I hate the new nickelodeon so much! I wish nickelodeon could bring back any show from the early 1990's, late 1990's, and even early 2000's on nickelodeon!", "The new nickelodeon sucks ***!", "Nickelodeon's shows in the late 2000's and the early 2010's suck ***!", "I can't stand the new shows on nickelodeon anymore! I want any show from the early 1990's, the late 1990's, and even the early 2000's! Any show but this garbage that nickelodeon has been putting on!", "The new nickelodeon shows teaches people how to do stupid things.", "Nickelodeon used to have great shows such as Rugrats, CatDog, Hey Arnold!, The Wild Thornberrys, Doug, Spongebob (1999-2004 version), Fairly Odd Parents (2001-2005 version), Invader Zim, Rocket Power, Ren and Stimpy, Clarissa Explains It All, Rocko's Modern Life, All That, Kenan and Kel, The Amanda Show, As Told By Ginger, Kablam!, Chalk Zone, My Life As a Teenage Robot, The Angry Beavers, Cousin Skeeter, Oh Yeah Cartoons, etc. until they started putting on terrible shows such as All Grown Up, iCarly, Victorious, Big Time Rush, Fanboy and Chum Chum, T.U.F.F. puppy, Planet Sheen, Mr. Meaty, True Jackson VP, How To Rock, Marvin Marvin, Fred: The Show, The Mighty B!, etc., which all suck ***!", "The new nickelodeon is disappointing!", "Nickelodeon shows horrible shows nowadays compared to any of its early 1990's, late 1990's, and even early 2000's shows that it used to air back in the 1990's and early 2000's.", "Most of nickelodeon's shows from the late 2000's and early 2010's are stupid and idiotic!", "I absolutely can't stand any show made after 2005 by nickelodeon!", "I can't believe nickelodeon shows horrific shows such as iCarly and Big Time Rush!", "Today's shows on nickelodeon are terrible compared to the 1990's and early 2000's shows that Nickelodeon used to show back in the good old days way back in the early 1990's, late 1990's, and the early 2000's!", "Any show on Nickelodeon that made in the early 1990's, mid-1990's, late 1990's, and the early 2000's are excellent shows, while Nickelodeon's horrific shows such as iCarly, Big Time Rush, Victorious, Fanboy and Chum Chum, The Mighty B, Marvin Marvin, etc. is horrible! I wish Nickelodeon brought back its great shows way back in the early 1990's, mid-1990's, late 1990's, and the early 2000's!", "I really can't stand Nickelodeon's new shows anymore!", "Why can't Nickelodeon make spin-offs of any of its old shows way back in the early 1990's, mid-1990's, late 1990's, and the early 2000's!", "Nickelodeon's new shows are hard to watch in public!", "Nickelodeon sucks now! I really want Nickelodeon to cancel its stupid and idiotic shows that it airs nowadays!", etc. Seriously, why do so many people constantly rant and complain about any of Nickelodeon's shows from the mid-2000's, late 2000's, and the early 2010's sucking and constantly saying that any of Nickelodeon's shows from the early 1990's, mid-1990's, late 1990's, and the early 2000's is good?