"In a way I was responsible for the crackdown, too," Gaines admits. "Some of the stuff I was publishing at that time was so rough that they had a Senate subcommittee investigating comics. Many thought that we were causing juvenile delinquency. When you look at it now compared with the material that is being published today, that stuff was innocuous. At that time, though, it was pretty rough." Gaines avoided censorship in another way. He has never accepted advertising in MAD and says this is the most effective way of maintaining freedom in picking material for the publication. "I don't know if anyone remembers it anymore, but I got this idea from a newspaper called PM that was published in New York in the '40s," said Gaines. "They were liberal and I was always intrigued with their concept — a paper refusing ads so they wouldn't have any censorship problems."
January 1, 1970
https://en.wikiquote.org/wiki/William_Gaines