Mort Weisinger
Mortimer Weisinger (1915-1978) was an American magazine and comic book editor.He is most famous as the editor of the Superman line of comic books for DC Comics during The Silver age of comic books
His tenure in this position was marked by a reliance of an complex milieux of supporting characters like Supergirl and Krypto and gimmicky plot devices like endless varieties of kryptonite and "imaginary tales" that featured stories featuring events deviating from the comics' status quo.
He also encouraged a static picture book style of illustration with villains who were more naughty than truly evil and dialogue often redundantly described the visual action. Superman himself was usually depicted as so impossibly good and with such godlike power that many stories had to continually play on his weaknesses to present reasonable challenges to the character.
When Julius Schwartz succeeded him, he tried to eliminate gimmicks like kryptonite and partially depowered Superman to allow for a more flexible story world. However, the influence of Weisinger's style proved too strong and most of the gimmicks returned, albeit in a modestly more sophisticated fashion. It take until 1986 for a successful revision of the Superman comics by John Byrne