The whole problem with censorship is that it's so arbitrary. For instance, you could make a strong argument in favor of a cartoon getting censored, like when it involves replacing smoking references in The Flintstones and Tom & Jerry, or getting rid of over-the-top racist stereotypes, or not getting blown up -- all of which was deemed appropriate for broadcast at one point or another. But then the stuff that does get censored makes no goddamned sense.
Sure, cultural differences get in the way sometimes (see: Thailand, which blurs one-piece swimsuits in imported anime), but other times the desire to protect children's sensitive brains turns into bizarre self-parody. For example ...
5The '90s Spider-Man Cartoon Was Forbidden from Showing Punches
Hey, children of the '90s, remember Spider-Man: The Animated Series? Can you name a single instance of Spider-Man punching someone in that show? Or anyone punching anyone? Surely there's at least one example -- how about that fight with Venom where Iron Man crashed the show for some reason?
"Take thish, Hulk! *hic*"
"Dude, I can feel your breath through the mask. You need help."
Nope: They just roll around in a way that we find strangely arousing. OK, then, what about the super-violent confrontation between Blade and Morbius? Nope again: They throw shit at each other but never actually fight.
"My secret weakness! Bricks!"
The closest we come to a punch in this series is an episode featuring the villain Spot where Spider-Man is forced to propel his fist through a portal to hit him, as the writers must have suddenly realized that grappling and dodging make less sense if done interdimensionally.
Although technically that's what they call a donkey punch.
Well, this was all quite deliberate: The producers had a set of rules stating that Spider-Man "couldn't throw punches, toss anyone through glass, put children in jeopardy, have anyone threatened by fire," or even say the word "kill" (so instead of getting murdered, Uncle Ben moves to Canada). That's also the reason why the grunge-era cops inexplicably carried around futuristic non-lethal blasters.
If you're gonna try and tase Electro, you're gonna need some better hardware, boys.
The most noticeable rule was probably the anti-punching one -- every fight scene turned into a predictable formula of Spider-Man dodging things thrown at him and then wrestling his opponents into submission before shooting his milky web goo and incapacitating them. Head writer/producer John Semper explained that the writers were told to always be careful that "when Spider-Man lands on the roof, he doesn't harm any pigeons." Either the censors didn't understand how animation works or the scripts were peppered with random acts of bird murder that we never got to see.
In contrast, please enjoy this compilation of Spider-Man punching people, getting shot with guns, and getting punched with guns in the 1960s cartoon: