I can't tell if this is supposed to be a humorous post or if it is just one of those nitpicking comments that bogs down a thread, At any rate yes while those Saturday morning cartoons from the 80s and 90s were rarely explicitly violent, violence was still a central theme of the shows.
Studios do the same thing with movies these days, for the amount of death and destruction in movies like the Avengers and X-Men very rarely does the viewer actually see blood or gore. Nobody is going to care that Rocket Raccoon is out there blasting away aliens and monsters.
This is America, sex and nudity is taboo here, not violence. I'm pretty sure kids these days are issued a copy of the latest Call of Duty game on their sixth birthday.
Speaking of sex and getting back on topic, some of the more risque Hughes covers from Catwoman volume 3 are also sought after. Everyone knows of 51 of course, but issues 45 and 74 are also popular.
A one sentence comment that "bogs down a thread" and your response is 4 paragraphs?